I would like to make a dimmer for several ikea desktop LED lights. This one is plugged on a LED driver (adapter) with specifications: Primary:220-240VAC 50/60Mhz, 0.06A Secondary: constant current: DC 500mA, 2.5...3.5V max 3.8V.
What's is the better? To interact with the DC side and low voltage or with the AC side?
We're going to make a DMX installation so there's a lot of work, and we would like to reuse it, so if it works with AC lights too it's better.
I've searched and would like to use this one: http://www.instructables.com/id/safe-and-simple-AC-PWM-Dimmer-for-arduino-Raspberr/step3/AC-PWM-dimmer-with-arduino/
Would it dimm the led? I understand that LED are not linearly related it terms of voltage/lumen relation, but would the driver change a lot? can i go from 0V to 3.5v in order to fade in/out it?
Thank you a lot for your help :-)