Post on 22-Jan-2017
transcript
How LEDs WorkEngr. Nelson Opeña
of GLOBALELECTRICITY19%
is used for
LIGHTING
90%OVER
of that energy is
WASTED
With LEDs, we can
save >50%of the global lighting energy consumption.
Topic Outline
I. What is LED?II. How LEDs workIII. Benefits of using LEDs
I. What is LED?
- Light Emitting Diode- An LED is a semiconductor
device that produces light when energized
II. How LEDs Work
Incandescent Lamp
CompactFluorescent
Lamp
LEDLamp
A. Different types of lamps
II. How LEDs WorkB. Parts of LED Lamps
Optics
LED Array
LED Driver
Heat Sink
Base Cap
II. How LEDs WorkB. Parts of LED Lamps (Cont’d)
Base Cap - Connects the lamp to the lighting fixture
II. How LEDs WorkB. Parts of LED Lamps (Cont’d)
Heat Sink - Absorbs the heat coming the LEDsBase Cap
II. How LEDs WorkB. Parts of LED Lamps (Cont’d)
LED Driver - Provides the right amount of electricity to the LEDsHeat Sink
Base Cap
II. How LEDs WorkB. Parts of LED Lamps (Cont’d)
LED Array - Group of light emitting diodes
LED Driver
Heat Sink
Base Cap
II. How LEDs WorkB. Parts of LED Lamps (Cont’d)
Optics - Diffuses the light coming the LED
LED Array
LED Driver
Heat Sink
Base Cap
III. Benefits of using LED
A. Energy efficient
B. Long usable life
C. Environment Friendly
III. Benefits of using LED
A. Energy efficient
=40W 5W
Inca
ndes
cent
Lam
p
LED
Lam
p
III. Benefits of using LED
B. Long usable life
vs
1,000 hours 50,000 hours
Inca
ndes
cent
Lam
p
LED
Lam
p
III. Benefits of using LED
C. Environment Friendly
vs
Mercury LED
CFL
LED
Lam
p
Thank you!
Save Mother Earth.Use Firefly LED.
Thank you!