LED Light question.....

[Wiseass]

Anyone know what pole is the + one? The shorter or longer one? Or doesn't it matter?

[Boomerang]

It matters! LEDs only work one way. Stick a battery between the leads (AA or AAA. Anything 1.5v) and see which way it works. A small voltage will not damage it if you get it wrong, so try away.

A slightly easier way would be to just look at the packaging (if you have it).

[Wiseass]

well the packaging is worthless..just says teh manufacturer and color heh thats it. But I did find out the longer one is the + lead. Also these look a bit bigger then the ones on my keyboard, not so much taller, but wider around. Like fatter. Would these still work or will I need to get different ones?

[Monaco]

The longer pole should always be the positive one. The important things about an LED is the voltage drop, and the mA draw. It'll say "3.2V, 25mA: or something like that on the box. If not, try 2 volts, ~50mA that seem to be the most common spec for LEDs.

The voltage is important; LEDs have a very narrow voltage operating range. Too little and nothing, too much for too long and a dead LED. Good thing they are cheap!