help for controlling power leds (10*1 w) brightness with pwm and UNO

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abrisham:
Leo i have a 24v 1A switching supply can i use it?

If yes, how my setup should be changed for that?

As I googled ,can i use lm3404hv with unos pwm?

Is there a way to change that constant current led driver to constant voltage supply?!

  1. Yes. Two strings of five (or six) LEDs. 300mA through each string.

  2. You need a constant current driver with PWM input. I use the PT4115. There are many others.
    Complete boards are available on ebay.
    This one can probably be modded if you know what you're doing.

  3. Don't know. Never used that chip.

  4. Probably not. Small chance if you post the circuit diagram.
    Leo..