Tuesday, May 29, 2007

Terminology Tuesday: LED

LED stands for "Light Emitting Diode."

These are tiny light bulbs that don't have a filament that will burn out like traditional incandescent light bulbs, nor do they get very hot. They are illuminated solely by the movement of electrons in a semiconductor material.

LEDs can last up to 60,000 hours, compared to less than 1,000 hours for incandescent bulbs. LEDs common in exit signs, stoplights, and some holiday lights.


David said...

LEDs are great - until you actually try to buy one for private homeowner use. I am trying to replace 120W 120V recessed lighting, which sucks a huge amount of juice. If anyone has a clue where to find something to fit the bill, please post it - the last industry guy I talked to says it's 5 years away. Thanks for the help.

Maria Surma Manka said...

Good point, David. LEDs are mostly for commercial use at the moment, and I've found as well that they're not quite ready for prime time homeowner use.