Different types of bulbs
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This document discusses different types of light bulbs, including incandescent, compact fluorescent (CFL), and LED lighting. Incandescent bulbs are the most familiar but also the least efficient and most expensive to operate. CFL bulbs are around 80% cheaper to run than incandescent and have improved in appearance and startup time. LED lighting is now the most efficient option, with models that are 90% cheaper to run than incandescent and provide instant full brightness like incandescent bulbs. LED bulbs are available for both general and downlight fixtures.
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Redheads, blondes, and practicals are types of portable lighting equipment used in film and television. Redheads are 800W lights used as filler, flood, or back lights. Blondes are larger 2000W lights that can also be used as backlights or key lights. Practicals are permanent lights already in a location. Reflector boards, scrims, gobos, and flood lights are also lighting tools that help control the quality, direction, and shape of light. Proper lighting setup considers hard and soft qualities, key/fill/back lighting techniques, color temperature, and directionality to effectively illuminate scenes.
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Circuit Shorts June 2015 - Confused about light bulbs? We're here to enlighte...
Circuit Shorts June 2015 - Confused about light bulbs? We're here to enlighte...S W Bishop Electrical
As you probably know, shopping for light bulbs can be a nightmare. You can leave the shop empty-handed and feeling as if you need a degree in electrical engineering. Believe me, the myriad of choice confuses me sometimes! Hopefully this month's Circuit Shorts will clear up some of the confusion and shed some light (see what I did there?) on the many possibilities.Lighting , case study & specification
The document discusses different types of lighting sources including incandescent bulbs, fluorescent tubes, compact fluorescent lamps (CFL), and LED lights. It provides information on the efficacy, color rendering index, luminance, lifespan, and color temperature of each type. Specifications and pricing for various models of CFL, LED, and fluorescent tube lights are also included.
Incandescent lamp
The document discusses the history and operation of incandescent light bulbs. It explains that in 1802, Humphry Davy demonstrated that running electricity through a thin metal strip could heat it enough to produce light. However, early light bulbs had short lifetimes due to filament burn up in air. Improvements were made to combat this, but generating electricity was costly. The document also describes how incandescent bulbs work, their availability in different sizes and voltages, their uses, and properties like color temperature.
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This is a Student Sample of Backup Materials. Please be mindful .docx
This is a Student Sample of Backup Materials. Please be mindful that it is a student's work and has sections that need work, as will be discussed in class lectures. It is provided merely as an idea of what these materials, in general, should look like. Please submit in hard copy day of your presentation. Please see separate samples of visual aids used during speech.
STUDENT NAME/SECTION: Sitora Mirsoatova
1. (
to
persuade
)Topic: Switch to fluorescent bulbs
2. Circle the General Purpose of your speech: to inform or
3. List the Main Points that you will develop:
I.Light production methods between fluorescent bulb and incandescent bulb.
II.Cost savings between incandescent and fluorescent bulbs.
III.Benefits offered by fluorescent bulb.
4. (
Comparative Advantages;
)Method of organization: Circle One Method Below
Chronological; Spatial; Topical; Cause/Effect; Problem/Cause/
Solution
;
Monroe’s Motivated Sequence: Attention, Need, Satisfaction, Visualization, Action
5. Specify the Specific Purpose: (general purpose, topic, and main points)
To persuade the audience to switch from incandescent bulbs to fluorescent bulbs in their homes by highlighting the light production methods between fluorescent bulb and incandescent bulb, the cost savings and the benefits offered by the fluorescent bulb.
6. Write a FULLY DEVELOPED SENTENCE stating the Specific Purpose Statement/Central Idea of your speech (includes your specific purpose (#4 above):
Today I will persuade you to switch from using incandescent bulbs to fluorescent bulbs in your homes by highlighting the light production methods between the fluorescent bulb and the incandescent bulb, the cost savings and the benefits offered by the fluorescent bulb.
7. List a connective/transitional phrase that you may use to get from your Introduction to Main Point I:
Let me begin with comparing methods of light production between a fluorescent bulb and incandescent bulb
8. List a connective/transitional phrase that you may use to get from your MPI to your MPII:
Now, I would like to prove you that switching to a fluorescent bulb will save you 70% on you electricity bill.
9. List a connective/transitional phrase you may use to get from MPII to your MPIII:
Now, I would like to share some impressive benefits offered by fluorescent bulb.
(
Statistics
) (
Comparisons/Contrast
) (
Anecdotes
)10.Circle the form of backup support that your will use in your speech:
(
Visual Aids
)Definition Examples QuotationsIllustrations Descriptions & Statistics
Other
(
Quotation
)11.Circle the technique you have chosen for your introduction:
Starling statement Reference to current incident
Reference to a common experience Anecdote Other
12.Circle the technique you will use for your conclusion:
Summary (Review of Main Points)Quotation, Anecdote, Challenge, (
Echo of introduction
)Other
APA Annotated Bibliography:
Deutsch, C. (2008, January 26). Seeking a More Fl ...
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Redheads, blondes, and practicals are types of portable lighting equipment used in film and television. Redheads are 800W lights used as filler, flood, or back lights. Blondes are larger 2000W lights that can also be used as backlights or key lights. Practicals are permanent lights already in a location. Reflector boards, scrims, gobos, and flood lights are also lighting tools that help control the quality, direction, and shape of light. Proper lighting setup considers hard and soft qualities, key/fill/back lighting techniques, color temperature, and directionality to effectively illuminate scenes.
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The document discusses different types of lighting sources including incandescent bulbs, fluorescent tubes, compact fluorescent lamps (CFL), and LED lights. It provides information on the efficacy, color rendering index, luminance, lifespan, and color temperature of each type. Specifications and pricing for various models of CFL, LED, and fluorescent tube lights are also included.
Incandescent lamp
The document discusses the history and operation of incandescent light bulbs. It explains that in 1802, Humphry Davy demonstrated that running electricity through a thin metal strip could heat it enough to produce light. However, early light bulbs had short lifetimes due to filament burn up in air. Improvements were made to combat this, but generating electricity was costly. The document also describes how incandescent bulbs work, their availability in different sizes and voltages, their uses, and properties like color temperature.
Eco friendly product
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and the product is CFL bulb which helps environment cleen and reduse the level of Co2
Cfl vs led vs incandescent light bulbs savings comparison
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This is a Student Sample of Backup Materials. Please be mindful .docx
This is a Student Sample of Backup Materials. Please be mindful that it is a student's work and has sections that need work, as will be discussed in class lectures. It is provided merely as an idea of what these materials, in general, should look like. Please submit in hard copy day of your presentation. Please see separate samples of visual aids used during speech.
STUDENT NAME/SECTION: Sitora Mirsoatova
1. (
to
persuade
)Topic: Switch to fluorescent bulbs
2. Circle the General Purpose of your speech: to inform or
3. List the Main Points that you will develop:
I.Light production methods between fluorescent bulb and incandescent bulb.
II.Cost savings between incandescent and fluorescent bulbs.
III.Benefits offered by fluorescent bulb.
4. (
Comparative Advantages;
)Method of organization: Circle One Method Below
Chronological; Spatial; Topical; Cause/Effect; Problem/Cause/
Solution
;
Monroe’s Motivated Sequence: Attention, Need, Satisfaction, Visualization, Action
5. Specify the Specific Purpose: (general purpose, topic, and main points)
To persuade the audience to switch from incandescent bulbs to fluorescent bulbs in their homes by highlighting the light production methods between fluorescent bulb and incandescent bulb, the cost savings and the benefits offered by the fluorescent bulb.
6. Write a FULLY DEVELOPED SENTENCE stating the Specific Purpose Statement/Central Idea of your speech (includes your specific purpose (#4 above):
Today I will persuade you to switch from using incandescent bulbs to fluorescent bulbs in your homes by highlighting the light production methods between the fluorescent bulb and the incandescent bulb, the cost savings and the benefits offered by the fluorescent bulb.
7. List a connective/transitional phrase that you may use to get from your Introduction to Main Point I:
Let me begin with comparing methods of light production between a fluorescent bulb and incandescent bulb
8. List a connective/transitional phrase that you may use to get from your MPI to your MPII:
Now, I would like to prove you that switching to a fluorescent bulb will save you 70% on you electricity bill.
9. List a connective/transitional phrase you may use to get from MPII to your MPIII:
Now, I would like to share some impressive benefits offered by fluorescent bulb.
(
Statistics
) (
Comparisons/Contrast
) (
Anecdotes
)10.Circle the form of backup support that your will use in your speech:
(
Visual Aids
)Definition Examples QuotationsIllustrations Descriptions & Statistics
Other
(
Quotation
)11.Circle the technique you have chosen for your introduction:
Starling statement Reference to current incident
Reference to a common experience Anecdote Other
12.Circle the technique you will use for your conclusion:
Summary (Review of Main Points)Quotation, Anecdote, Challenge, (
Echo of introduction
)Other
APA Annotated Bibliography:
Deutsch, C. (2008, January 26). Seeking a More Fl ...
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The document discusses different types of lighting options including incandescent bulbs, fluorescent tubes, CFLs, and LEDs. It provides details on the efficacy, color rendering index, lifespan, color temperature, and other specifications of each type. It also includes case studies on lighting design implementations at stores like Van Heusen to create good ambience. Price lists for the different lighting products from companies like Philips, Osram, and Havells are presented as well.
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This document introduces different types of indoor and outdoor light bulbs and their key characteristics. It defines terms like watt, lumens, lux, efficiency and efficacy. For indoor lighting, it describes traditional incandescent bulbs as well as more efficient CFL and LED bulbs. Outdoor lighting discussed includes halogen, metal halide, sodium and LED street lamps. Newer LED options like PCA and NBA lamps are highlighted as being efficient with good color rendition.
Lights
This document contains equipment reference forms for 6 different types of lighting equipment:
1) A pin spot light used to highlight small areas with a narrow beam from a 30w bulb.
2) An ETC S4 Jr Zoom light similar to a Profile, used in clubs/small stages, with a 575w bulb that appears brighter but uses less energy.
3) A Profile CCT Minuette light with adjustable lenses to control beam size and shape, a 650w bulb, and accessories like gobos and an iris.
4) An LED Par 56 light made of tiny color-mixing bulbs that don't get hot and have long lifetime controlled by DMX or a back switch.
5
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This document discusses lighting options and their energy usage. It begins by explaining how light output, energy use, and lamp efficiency are measured. It then discusses various lighting technologies like incandescent, fluorescent, and halogen lights. Compact fluorescent lights are highlighted as the most efficient option, using around 75% less energy than incandescent bulbs to produce the same amount of light. While more expensive initially, compact fluorescent bulbs save significantly on energy costs over their longer lifespan. The document provides examples showing the financial savings of switching to more efficient compact fluorescent bulbs.
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This document summarizes the benefits of switching from incandescent light bulbs to compact fluorescent light (CFL) bulbs. CFL bulbs use 50-80% less energy and last much longer than incandescent bulbs, saving money on electricity costs over time. While CFL bulbs contain mercury which requires proper disposal, switching to CFL can significantly reduce a household's carbon footprint and energy usage. Large-scale adoption of CFL could save billions and reduce the need for new power plants.
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The document discusses the federal government's ban on incandescent light bulbs effective January 1, 2014 and the more energy efficient alternatives consumers will have to choose from. It describes the key characteristics of compact fluorescent lamps (CFLs), light emitting diodes (LEDs), and halogens. While CFLs and LEDs save energy, they have higher upfront costs. LEDs have longer lifespans than CFLs but performance in cold weather is still a concern. The author believes the ban was premature and that the LED industry needs more time to improve before incandescents are fully replaced.
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Lighting and Appliances
Making the lighting and appliances in a home more energy efficient is an important part of the weatherization process. Exchanging inefficient light bulbs for newer, energy efficient versions is easy and, in most cases, inexpensive.
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Learning Objectives
Upon completion of this module, you should be able to:
7A
evaluate the best types of artificial lighting.
7B
create different applications that bring natural light in a space.
7C
discuss which types of appliances are the most energy efficient.
Module 6 Reading Assignment
Krigger, J., & Dorsi, C. (2012). Residential Energy: Cost Savings and Comfort for Existing Buildings (6th ed.). Helena: Saturn Resource Management, Inc. Chapter 7.
Supplemental Reading Assignments (Required):
Division of energy resources (2010). Appliances, lighting, electronics an energy guide to help select and operate efficient devices for your home. Minneapolis, MN, (pp. 1-32).
Institute for electric efficiency. (2009, December). Assessment of electricity savings in the U.S. achievable through new appliance/equipment efficiency standards and building efficiency codes (2010-2020). Washington, D.C.: The Edison Foundation, (pp. 1-42).
Lecture Notes
Lighting and Appliances
Anything that draws electrical power is referred to as a load. Part of weatherizing a home includes minimizing the loads in the home in order to lower energy bills and maximize energy efficiency.
Artificial Lighting
Artificial lighting is provided by electricity, fixtures, and bulbs. Artificial lighting is a big contributor to high energy costs. It can contribute as much as 50 percent of the total energy costs of a home.
Lynn Clement of Focus on Energy once said, “If every American household replaces light bulbs in their five most frequently used fixtures with ENERGY STAR compact fluorescent bulbs, we could save more than $8 billion in annual energy costs and prevent greenhouse gases equal to the emissions of more than 10 million cars.”
Since lighting accounts for 20 to 25 percent of U.S. energy consumption, the move to more energy efficient lighting is very important.
Types of Lighting
There are three primary uses, or functions, for lighting in homes: task, ambient, and accent. Task lighting provides light to perform work. Ambient lighting may include light that is used for work but also includes lighting for safety and security. Any lighting used for contrast or ambiance is accent lighting. There are many different types of artificial lights available for residential uses.
Types of Artificial Lighting
Incandescent
Fluorescent
Compact fluorescent
High-intensity discharge
Halogen
Light Emitting diodes
Full Spectrum
Recessed Lights
Incandescent Bulbs
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Ahmad & co brand catalog
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"Fair Dealings,our Pride"
We are distributor of Electrical fitting things indoor & outdoor Lighting.
We deal all kinds of Electric conduit P.V.C cable Trunking (Duct) & China fittings, Breakers, Switchers, & Sockets, SMD Lights, Energy Savers, Panel Lights, Indoor and Outdoor In Brands. Exhaust Fans, Ceiling Fans, Pedestal Fans.
"Your trust Our Passion & we fulfill Demands with Recognized Brands"
Bs ii-electricity-unit-iv-2012-four
This document discusses various types of lighting systems and lamps, including:
- Incandescent lamps like the carbon filament lamp and tungsten lamps. Tungsten lamps work by heating a tungsten filament until it glows.
- Compact fluorescent lamps (CFLs) which work like fluorescent bulbs but in a smaller package and are more efficient than incandescent.
- Halogen lamps which are more efficient than tungsten lamps and have a longer life due to a halogen gas that redeposits evaporated tungsten.
- High-intensity discharge (HID) lamps like high-pressure sodium, metal halide, and mercury vapor lamps which produce high levels of light from
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2) An ETC S4 Jr Zoom light similar to a Profile, used in clubs/small stages, with a 575w bulb that appears brighter but uses less energy.
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Handbook lighting
This document discusses lighting options and their energy usage. It begins by explaining how light output, energy use, and lamp efficiency are measured. It then discusses various lighting technologies like incandescent, fluorescent, and halogen lights. Compact fluorescent lights are highlighted as the most efficient option, using around 75% less energy than incandescent bulbs to produce the same amount of light. While more expensive initially, compact fluorescent bulbs save significantly on energy costs over their longer lifespan. The document provides examples showing the financial savings of switching to more efficient compact fluorescent bulbs.
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Gento Lighting CO., LTD is an enterprise specializing in developing and supplying LED filament bulbs, which are fantastic for atmospheric lighting, in a multi-bulb pendant light, as well as discreet lighting.
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Incandescent
The document discusses the federal government's ban on incandescent light bulbs effective January 1, 2014 and the more energy efficient alternatives consumers will have to choose from. It describes compact fluorescent lamps (CFLs), light emitting diodes (LEDs), and halogens as the main replacement options. It also discusses various factors of these alternatives like lifespan, efficiency, color options, dimming ability, and cold weather performance, noting that LED technology is still emerging. The author expresses a personal opinion that the government mandate was premature and certain uses still require incandescent bulbs.
Energy Project
This document summarizes the benefits of switching from incandescent light bulbs to compact fluorescent light (CFL) bulbs. CFL bulbs use 50-80% less energy and last much longer than incandescent bulbs, saving money on electricity costs over time. While CFL bulbs contain mercury which requires proper disposal, switching to CFL can significantly reduce a household's carbon footprint and energy usage. Large-scale adoption of CFL could save billions and reduce the need for new power plants.
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The document discusses the federal government's ban on incandescent light bulbs effective January 1, 2014 and the more energy efficient alternatives consumers will have to choose from. It describes the key characteristics of compact fluorescent lamps (CFLs), light emitting diodes (LEDs), and halogens. While CFLs and LEDs save energy, they have higher upfront costs. LEDs have longer lifespans than CFLs but performance in cold weather is still a concern. The author believes the ban was premature and that the LED industry needs more time to improve before incandescents are fully replaced.
OverviewLighting and AppliancesMaking the lighting and applian.docx
Overview
Lighting and Appliances
Making the lighting and appliances in a home more energy efficient is an important part of the weatherization process. Exchanging inefficient light bulbs for newer, energy efficient versions is easy and, in most cases, inexpensive.
Exchanging appliances for newer, more energy efficient ones is usually worth the effort, although some appliances, such as ovens and stovetops, do not use enough energy to warrant being replaced.
Learning Objectives
Upon completion of this module, you should be able to:
7A
evaluate the best types of artificial lighting.
7B
create different applications that bring natural light in a space.
7C
discuss which types of appliances are the most energy efficient.
Module 6 Reading Assignment
Krigger, J., & Dorsi, C. (2012). Residential Energy: Cost Savings and Comfort for Existing Buildings (6th ed.). Helena: Saturn Resource Management, Inc. Chapter 7.
Supplemental Reading Assignments (Required):
Division of energy resources (2010). Appliances, lighting, electronics an energy guide to help select and operate efficient devices for your home. Minneapolis, MN, (pp. 1-32).
Institute for electric efficiency. (2009, December). Assessment of electricity savings in the U.S. achievable through new appliance/equipment efficiency standards and building efficiency codes (2010-2020). Washington, D.C.: The Edison Foundation, (pp. 1-42).
Lecture Notes
Lighting and Appliances
Anything that draws electrical power is referred to as a load. Part of weatherizing a home includes minimizing the loads in the home in order to lower energy bills and maximize energy efficiency.
Artificial Lighting
Artificial lighting is provided by electricity, fixtures, and bulbs. Artificial lighting is a big contributor to high energy costs. It can contribute as much as 50 percent of the total energy costs of a home.
Lynn Clement of Focus on Energy once said, “If every American household replaces light bulbs in their five most frequently used fixtures with ENERGY STAR compact fluorescent bulbs, we could save more than $8 billion in annual energy costs and prevent greenhouse gases equal to the emissions of more than 10 million cars.”
Since lighting accounts for 20 to 25 percent of U.S. energy consumption, the move to more energy efficient lighting is very important.
Types of Lighting
There are three primary uses, or functions, for lighting in homes: task, ambient, and accent. Task lighting provides light to perform work. Ambient lighting may include light that is used for work but also includes lighting for safety and security. Any lighting used for contrast or ambiance is accent lighting. There are many different types of artificial lights available for residential uses.
Types of Artificial Lighting
Incandescent
Fluorescent
Compact fluorescent
High-intensity discharge
Halogen
Light Emitting diodes
Full Spectrum
Recessed Lights
Incandescent Bulbs
Incandescent bulbs, which are also referred to as A-type bulbs,.
LED vs Fluorescent Lamps
T12 production ended July 2012. Your decision point is a migration to T8 and new ballasts or T5 and new fixtures - or LED. You know that your energy costs are going up by 40% in the next couple of years and likely 100% over the next 10. Why not use todays money to light your path to future profitability. The highest ROI is LED.
Adorama elearning
This document provides an overview of continuous lighting sources that can be used for studio photography. It discusses hot lights such as photofloods, HMI, and quartz lights, as well as cold lights powered by fluorescent bulbs. It also defines key lighting terms like color temperature, watt-seconds, and guide number. The document focuses on monolights as a type of studio flash that offers variable power outputs and modeling lights to preview lighting effects. It provides examples of affordable monolight options and factors to consider when shopping for a monolight, such as continuously variable output and proportional modeling lights.
Ahmad & Co brand cataloge
"Ahmad & Co"
"Fair Dealings,our Pride"
We are distributor of Electrical fitting things indoor & outdoor Lighting.
We deal all kinds of Electric conduit P.V.C cable Trunking (Duct) & China fittings, Breakers, Switchers, & Sockets, SMD Lights, Energy Savers, Panel Lights, Indoor and Outdoor In Brands. Exhaust Fans, Ceiling Fans, Pedestal Fans.
"Your trust Our Passion & we fulfill Demands with Recognized Brands"
Ahmad & co brand catalog
"Ahmad & Co"
"Fair Dealings,our Pride"
We are distributor of Electrical fitting things indoor & outdoor Lighting.
We deal all kinds of Electric conduit P.V.C cable Trunking (Duct) & China fittings, Breakers, Switchers, & Sockets, SMD Lights, Energy Savers, Panel Lights, Indoor and Outdoor In Brands. Exhaust Fans, Ceiling Fans, Pedestal Fans.
"Your trust Our Passion & we fulfill Demands with Recognized Brands"
Bs ii-electricity-unit-iv-2012-four
This document discusses various types of lighting systems and lamps, including:
- Incandescent lamps like the carbon filament lamp and tungsten lamps. Tungsten lamps work by heating a tungsten filament until it glows.
- Compact fluorescent lamps (CFLs) which work like fluorescent bulbs but in a smaller package and are more efficient than incandescent.
- Halogen lamps which are more efficient than tungsten lamps and have a longer life due to a halogen gas that redeposits evaporated tungsten.
- High-intensity discharge (HID) lamps like high-pressure sodium, metal halide, and mercury vapor lamps which produce high levels of light from
Guide to buy energy efficienct bulbs
Consumer Federation of America and Consumers Union are releasing a simple guide to help consumers understand the new lighting choices they will have under the new light bulb law taking effect January 1, 2012. While a serious matter, the guide is entitled: How Many Tips Does it Take to Change a Light Bulb?, the two page guide provides 8 tips to selecting a new light bulb simpler.
Jimil baby
The document discusses compact fluorescent lamps (CFLs), including their usage, disposal, characteristics, and environmental impacts compared to incandescent bulbs. CFLs use less energy, last longer, and save money over time compared to incandescent bulbs. However, CFLs contain small amounts of toxic mercury that require special disposal procedures to avoid environmental pollution. Many areas now mandate recycling of CFLs due to mercury concerns.
Similar to Different types of bulbs (20)
Led filament bulb LED Vintage Filament Bulb supplier
Led filament bulb LED Vintage Filament Bulb supplier
Led light bulbs for residences a substantial enhancement over older lightin...
Led light bulbs for residences a substantial enhancement over older lightin...
OverviewLighting and AppliancesMaking the lighting and applian.docx
OverviewLighting and AppliancesMaking the lighting and applian.docx
Different types of bulbs
- 1. Differenttypes fbulbs e.g.LED Lighting Differenttypes fbulbs e.g.LED Lighting presentedbylightsnlightsff.co.ukpresentedbylightsnlightsff.co.uk IncandescentLightBulbs TThesearethelightbulbsweare allfamiliarwith.Theyare designedinmanytypesof fittings,screwfit,bayonet,etc. Thesearetheleastefficientbulb andcostthemosttorun. C mpactFlu rescent Lamps(CFL) TThesearethenewerlowenergy types.Originallytheylookeda littlestrange.Theyare80% cheapertorunthantheold incandescentbulbs.CFL’shave changedalotinthelastfew yearsnoticeablyintwoways. New C mpactFlu rescent TTheyusedtolookquiteugly,but asyoucannowseetheynow lookliketraditionalbulbs.They alsousedtotakealongtimeto gettofullbrightness,thisisnot thecasenow,manytakearound 30secondstogettofullbright- nness.Soagreatchoicethatwill saveyoumoney.CFL’sarealso morereliableandlessproneto blowing. LED Lighting TThisisthelatesttechnologyand theyare90%cheapertorun thantheoldincandescentbulbs. UnliketheCFL’stheyprovide instantfulllightwhenturnedon, justliketheincandescent. LED SparklingLighting TThesearenowavailabletofit intoalmostanytypeoflight fitting.There’resettotakeover fromtheoldincandescentbulbs andCFL’s.Theycomeinmany newcooldesignssuchastheone ontheleftwhichprovidesan amamazingsparkleeffecttoyour lighting. LED D wnlights AAvailabletofitintothedown lightsreplacingtheoldhalogen bulbs.Againfarmorereliable offeringyearsofserviceandstill 90%cheapertorun.Forexample ifyouweretorun6halogen downlightsfor8hoursperdayit wouwouldcostaround£260pounds peryear,running6LEDdown- lightswouldcostjust£15forthe sametime