Sitka Lv Green Builders Show Pp 07

“A Clear Future for Lighting”
2010 Lehigh Valley Green Building Expo
Northampton Community College
March 20th-21st, 2010
Kevin I. Baker

©Sitka Enterprises Inc, 2010 www.sitkaenterprises.com

Changing energy sources,
electricity de-regulation, higher
power pricing, federal and state
energy policy, rapid technology © Anne Elizabeth Schlegel 2009
developments, cost and
environmental consciousness
create a ‘perfect storm’ for new
lighting solutions for the home

THE OPPORTUNITY


•Overview of Lighting Types
•Lighting Technology Revolution
•Benefits, Economics and Aesthetics
•What are LED’s?
•Thinking about Lighting Your Home in a Different Way

OUTLINE


Overview of Lighting Types
• Standard fluorescent
– Mixture of low pressure mercury vapor and inert gas (such as argon) in tube. Phosphor powder
coating on tube fluoresces excited by UV emitted by mercury vapor when current applied. Current
controlled by a ballast.

• Compact fluorescent
– Same technology as above

• Incandescent
– Nitrogen and or argon filled, ~5-10% of power converted to light

• High intensity discharge (HID)
– Mercury vapor, metal halide, and high pressure sodium lamps

• Halogen
– Halogen gas-filled (iodine or bromine) quartz capsule operated at high temperature

• Light Emitting Diode (LED)
– Semiconductor diode that emits light when electrical current passes through it, solid state device
(SSL)


Lighting Technology Revolution 2008
2006
2005 High Power
2002 LED
Question: White LED
When are Incandescent
2001
T5 Fluorescents
light bulbs phased out? 1981
LED efficiency>incandescent

1974 CFL efficiency>incandescent

T8 Fluorescents
1962 First CFL

1959 Energy saving fluorescent
1938
Practical LED’s
1934
First quartz halogen lamp
1879 First Fluorescent Lamp

First HID Mercury Lamp

1) GE Lighting
2) Revolution in Lamps, Raymond Kane, Heinz Sell, NetLibrary, Inc
First Incandescent lamp 3) Wikepedia


Comparison
Incandescent bulbs are inefficient, fluorescents are better, but the future is LEDs

Source: Kevin Dowling, Asilomar, August 18th, 2008
Definitions:

• Luminous Flux – the quantity of light emitted by a lamp, measured in Lumens (lm)
• Efficacy – the ratio between the lamp’s output in lumens and the power is uses in Watts – lm/W
• Color Temperature – Determines whether colors appear warm or cool (Kelvin)
• Color Rendering – the extent to which the colors of surfaces will appear the same as if it was lit by daylight – the color
rendering index (R) is a scale between 0 and 100.
• Illuminance – the amount of light reaching a surface – measured in lux (one lumen per sqm)


Pros and Cons of Lighting Types
– Exceptional Light Quality – LEDs can be tuned to deliver excellent color rendition

– More efficient - LED light bulbs use only 2-10 watts of electricity (1/3rd to 1/30th of Incandescent or
CFL), cost is also saved in maintenance and replacement costs. Electricity costs can be reduced by 80% or
more.

– Long-lasting - LED bulbs last up to 10 times as long as compact fluorescents, and far longer than typical
incandescents. 30-50,000 hours of operation!

– Durable - since LEDs do not have a filament, they are not damaged when a regular incandescent bulb
would be broken. Because they are solid, LED bulbs hold up well to jarring and bumping

– Cool Running- LEDs do not cause heat build-up; LEDs produce 3.4 btu's/hour, compared to 85 for
incandescent bulbs. This also cuts down on air conditioning costs in the home

– Mercury-free - no mercury is used in the manufacturing of LEDs, they are easy to recycle

– Enabling for remote areas - because of the low power requirement for LEDs, solar panels become more
practical

Note: - All light bulb technologies now deliver dimmable, color tone range
and range of base types


Environmental Concerns on CFL’s
Mercury and CFLs:

Mercury is a toxic metal (neurotoxin) easily ingested by inhalation
A CFL bulb generally contains an average of 5 mg of mercury (about one-fifth
of that found in the average watch battery)

EPA Recommended Procedure for Safe Handling and Disposal of CFLs:

If you break a CFL:

– Open window, leave room for 15 minutes or more
– Use a wet rag to clean up all pieces
– Place pieces and wet rag, in a plastic bag
– Place bag and all other materials in a second sealed plastic bag
– Call your local recycling center to accept this material, otherwise put in trash
– Wash your hands afterward

Feb 25th 2008: Compact Fluorescent Lamp Breakage Study Report


Green movement
Increasing power costs and consciousness
Increasing environmental awareness
Improved LED energy performance
Brighter, higher output and cheaper LEDs
Outpacing CFL’s
Product proliferation and innovation

WHY LED’s NOW?


What are LED’s -Light Emitting Diodes
– A relatively new technological
innovation based on the emissive
properties of materials like
Gallium Nitride and the color
properties of phosphers
– LEDs are different than existing
lighting technologies
– Work best when a systems
approach is used
– Maximize energy efficiency
– Light and lighting qualities are
different


HOW AN LED WORKS
Illustration courtesy of Phillips Lumileds lighting

•A semiconductor doped with impurities to create a diode
•Electrical current flows one way, releases energy and produces visible light
– p- side anode to n-side cathode
•Coating materials used, define the color of light produced

•Commercial systems typically use a blue diode and phosphor combination to
generate white light - there are no white LEDs

•An alternative is a combination of red, blue and green LEDs


LED Light system not just a bulb
LED
Light
Optics

Thermal
Management

HEAT

Drivers &
Controls

Power
Management
Electricity

Measure light color as the correlated color temperature (CCT)
LED lights are available in different color temperatures
Most common are 3000K (warm white); 4000K (cool white);
6000K (daylight)
Warm color tones also developed - 2700K (incandescent) Courtesy of CREE

Color rendering index (CRI) is a measure of a lights spectral output
on color and the index measures the accuracy

LED LIGHTS COME IN MANY
COLORS

LED Lamp Color Comparison

• EcoPower GU10 LED
Lamps
• Lamp power 3W
• Reflection from 93
brightness office paper
6000K 3000K


Some New Developments
8W dimmable B60 lamp
• Dimmable lamps
• Radiant applications
• Improved efficacy (lumens/watt)
• Increased output (Up to 24W)
• Autoprotection circuit for longer life
• 35,000 hours

40W Ceiling Fixture • 44 or 52 Watts
• 3200 and 3800 lumens
• 3500K
• Dimmable
• 50,000 hours
• No toxic mercury


•LED efficiency and light output doubled every 36 months
since the 1960s - Haitz’s Law

•No need to continue adapting to existing lighting
infrastructure

•Solid State Lighting (SSL) optimized systems will realize
new benefits and new lighting possibilities

•New lighting suppliers and distribution developing

•Organic light-emitting diodes (OLEDs)
– Inexpensive, flexible displays
– Light emitting wall coverings/decorations
– Light emitting cloth

THE FUTURE
Thinking about Lighting Your Home
a Different Way


TRY AN LED
TODAY!

Places to use LED’s in your Home Today
• Recessed Kitchen Ceiling Lights

• Recessed Bathroom Ceiling Lighting

• High Ceiling Lighting in Foyers and Two-Storey Great Rooms

• Hallway Accent Lighting

• Up-Lighting – Accent

• Dining Room

• Nightstand Lighting

• Reading Lights

• Chandeliers

• Plant Displays

• Aquariums


Acknowledgements


Thank You
Meet me at the Speaker’s Resource

Contact Sitka at:
• 484 433 0052 or 610-393-6708

• www.sitkaenterprises.com

• Facebook - Planet Saving Lighting and Recycling Solutions

• Follow us on Twitter - @TheOnlySitka


Sitka
Enterprises
©Sitka Enterprises Inc, 2010
Inc.
www.sitkaenterprises.com
Saving energy with sustainable lighting solutions

Power Consumption by End-Use


Sitka Lv Green Builders Show Pp 07

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