My presentation is based on benefits of led in daily uses & led light is help to save electricity.

1. BENEFITS OF LED LIGHT IN
HUMAN LIFE

2. What is LED light ?
LED lights are the latest technology in energy
efficient lighting. LED stands for ‘Light Emitting
Diode’, a semiconductor device that
converts electricity into light.
LED lights are super energy efficient, using
approximately 85% less energy than halogen
or incandescent lighting – meaning significant
savings on your power bills. LED lights also
have a much longer lifespan than other types
of lighting.

3. DIFFERENCE BETWEEN LED & CFL
CFL
CFL lights are widely used in
small power lighting: such as
home lighting or shop lighting,
because its light is solft and
not cost a lot energy. and not
harm for eyes.
LED
LED : normally is good for
decration lightings for beauty,
such as project light for wall
setting and landscape lighting
and LED strips. but the LED
with too much blue lights, and
most have light flickering, so
LED is not very good for the
purpose of lighting, for beauty
lighting with RGB color
changing lighting is perfect.

4. BENEFITS OF LED IN DAILY LIFE
1. Long Life - LED Lighting Features Long Operational Life Time Expectations
2. Energy Efficiency - LED Lighting Features A Much Better Energy Efficiency
3. Ecologically Friendly - LED Lighting Is Much More Eco-Friendly
4. Durable Quality - LED Illumination Can Withstand Rough Conditions
5. Zero UV Emissions - LED Lighting Features Close to No UV Emissions
6. Design Flexibility - LED Lighting Has Powerful Flexible Design Features
7. Operational in Extremely Cold or Hot Temperatures
8. Light Dispersement - LED Lights Achieve Higher Application Efficience
9. Instant Lighting & Frequent Switching - LEDs Can Be Turned On/Off Many
Times
10. Low-Voltage - LED Lighting Can Run on Low-Voltage Power Supply

5. DISADVANTAGES OF LED
Most LED lights in the market today use LED chips that emit blue light at
about 450-460 nm. In order to convert this light into usable, white light,
we use what are called LED phosphors. LED phosphors convert this blue
light into various other wavelengths, consequently allowing a mixture of
wavelengths to produce what we perceive as white light. The problem
is, when phosphors are used introduced, efficiency (total light output
per unit of power) decreases, so many manufacturers opt for max
quantity of light vs quality of light by only using one type of yellow
phosphor. This blue + yellow mixture limits the amount of light
produced in the green and red portions of the spectrum. For many
applications, this spectrum is sufficient, particularly when other
phosphors such as red phosphors are added to the mix. However, the
difference in light quality is certainly noticeable and may be problematic
depending on the lighting application.

6. CHART OF THEIR COSTS

7. USING OF POWER
To understand LED light benefits, it’s important to understand the difference between the two
bulbs. LED light bulbs produce light when an electrical current passes through them. In CFL
bulbs an electric current flows between electrodes at each end of a gas-filled tube. The
reaction creates ultraviolet light and heat, which is then changed into light when it hits a
phosphor coating on the bulb’s interior. This process takes anywhere from 30 seconds to 3
minutes to complete, according to ENERGY STAR®, which is why it can seem as if your CFL
light takes a while to be fully lit.
CFLs used 25-35% less energy than incandescent bulbs, but it you really want to make the
biggest environmental impact on the environment, choosing LEDs is the way to go.
Residential LEDs, especially those rated by ENERGY STAR, use 75% less energy and last 25
times longer than incandescent lighting. Energy.gov notes that by 2027 widespread use of
LEDs could save about 348 TWh of electricity, the equivalent of annual electrical output of 44
electric power plants (1000 megawatts each). It’s also a total savings of more than $30 billion
at today’s electricity prices.

8. THANK YOU SO
MUCH FOR
WATCHING MY
PRESENTATION