SOURCE : U.S. DEPT OF ENERGY

Lumen Convert To Watts

equivalent bulb

Watts Convert To Lumen

equivalent bulb
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What's An Led ?

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LEDs (or light-emitting diodes)are small sources of light that work when the movement from electrons illuminate semiconductor material. this longer lasting technology is usually found in traffic lights and exit signs, but now consumers can find options like LED light bulbs and even Christmas light. companies like GE are working to make LED technology more affordable and practical for homes. the department of energy estimates that rapid adoption of LED lighting in the U.S. over the next 20 years can reduce lighting electricity demand by 33% by 2027.

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led-1 INCANDESCENT BULB led-1

led-1 CFL BULBS led-1

led-1 EnergySmart LED Bulb led-1

INCANDESCENT BULB

90%

of the energy released
from incandescent
bulbs is heat

CFL BULBS

80%

of the energy released
from CFL bulbs is heat

EnergySmart LED Bulb

75%

of the energy released
from an LED bulb is heat,
which is channeled into a
heat sink so it stays cool
to the touch.

What's the estimated lifetime for common light sources ?

How To Buy
A light Bulb ?

You Used to
buy these

Incandescent

Watts

100 w

75 w

60 w

40 w

You Used to
buy these

Lumens

1600

1100

800

450

Now You Can Buy These

LED

Most efficient

CFL

More efficient

HELOGEN

WATTS

coming soon

up to 23W

up to 72W

coming soon

up to 20W

up to 53W

up to 12W

up to 13W

up to 43W

up to 9W

up to 9W

up to 29W

Lumens outputs and walltages based on the most common products avilable for each medium screw base
light bulb. Actual lumen output and walltage may vary by product
Revisd April 20,2012