I know sweet f.a. about LEDs or how they work in conjunction with resistors, but I still want to mod my Microsoft Natural keyboard's LEDs. The changing of them is stupidly easy, I just have to pull the 3mm greens out and drop some blues/reds in, no soldering even needed, but am I right in thinking that I'd need a resistor or something if I couldn't get LEDs with exactly the same ratings? (this is where my limited knowledge breaks down, you see ) How would I find out what LEDs I need, and is there a range that would all work without having to change anything? I don't think there'd be room in there for resistors. Thanks
The circuit should already have the resistors built in, and the difference in ratings between the LEDs will be small as to make little difference, we'd only be talking a fre mA. IE: running a blue LED at slightly lower current/voltage may slightly diminish brightness, but shouldn't be noticable. running a red at slightly higher current/voltage shouldn't cause too many problems/significantly shorter the life. That would be my guess any way. I suggest just to try it and see, especially if they are that easy to change!
