The problem is that i don't know if i can do that with the drivers i'm using right now.The drivers are 2x meanwell lpc 60-1400 and 2x lpc 60-1050.
The way i'm planning on doing it is by using the pwm signal from arduino to operate the gate of the mosfet.Will this work
If the drivers are analog constant current then they won't be amenable to _high-speed_ digital PWM,but all drivers can be powered off and on, its just a question of how fast you can do this and stillhave them work
what about building one of these? http://www.tbideas.com/blog/build-an-arduino-shield-to-drive-high-power-rgb-led/Just got my RGB leds and I am onto that.