|The long lead on a LED is the positive and the short is negative. The blue wire is positive and the white is negative.|
The LEDs i've got are too large and do not shine brightly enough. I need to get some 3mm ones but here in Australia I don't think there are many places to buy them..
What does it mean if when you place one led on the other one goes out and when you take it off the other one lights up again?