SOURCE : U.S. DEPT OF ENERGY
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.
of the energy released
from incandescent
bulbs is heat
of the energy released
from CFL bulbs is heat
of the energy released
from an LED bulb is heat,
which is channeled into a
heat sink so it stays cool
to the touch.
100 w
75 w
60 w
40 w
1600
1100
800
450
Most efficient
More efficient
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