ok electronic guru's. as i am an amatuer i am haveing a difficult time figuring out this one. i am going to make a sign out of LED's that just spells out a word. nothing special just turns on and stays on. well as i have been testing things out on a breadboard i run like 5 LED's in parallel an power them off the same source..... why is it that they start out bright then get dimmer? i thought by putting them in a parallel system they would all get the same power.