Hi Everyone, I have been thinking about a new project and i am interested in creating an rgb spotlight that I can power with a battery.
The chip I want to use is Cree XLamp MC-E colour
However, I am having trouble working out how to control something like this. From my research, it seems that I would need to use 4 separate led drivers 700ma with PWM control but I am not sure how to also regulate the voltage. Each colour needs a different voltage so would using the same led driver for each colour burn out the led? I have been looking at something like this:
Does this alter the voltage as well as the current?
Does the led just take the voltage it needs or does it just take what is supplied? So if i use 12v 700ma, would the led just take 2.1v 700ma for the colour Red for example?
Any help would be greatly appreciated.