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