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!