Civinfo - View Single Post - Calculate the resistor you need for a LED

neilfs · 2nd March 2007, 23:58

So what happens when you use four white LEDs?

Glad someone knows about this, I've never really understood why LED lights have what looks as if resistors all over them, do they do lots of small circuits in parallel, ie lots of 4 LED chains with a current limiting resistor?

2nd March 2007, 23:58	#3 (permalink)
neilfs Supporter Wheelnut Join Date: 18th November 2006 Location: Hindhead, Surrey Posts: 73 Thanks: 2 Thanked 0 Times in 0 Posts iTrader: (0)	So what happens when you use four white LEDs? Glad someone knows about this, I've never really understood why LED lights have what looks as if resistors all over them, do they do lots of small circuits in parallel, ie lots of 4 LED chains with a current limiting resistor?