anyone know anything about working out resistance with resisters can u let me know ? thanks.
I got 4x Led's on one chain. Like positive to negative. SO One LED pos is connected to the neighboring LED Neg and so on.
This makes 1.3v x 4 = 5.2v. but im running them on a 5.5v rail (this is OK normally) so it makes the intensity a little brighter but makes them run hotter to.
So i want to run them as low as possible to get as least heat as possible.
Like what is the lowest i can run them on?. What resister will i need to use?.
Thanks for any input