I would like to control LED lighting being run by a MEAN WELL HLG-120H-42B. I know I can easily do this with a easily with a PWM signal, but that is not what I want to do. Ideally, I would output an average of 50% brightness, with time periods that are higher output and others that are lower. Running a LED with 50% the current is significantly more efficient that using a PWM to run it at 100% of the current and flickering it on and off 50% of the time.
This involves either a simply voltage signal between 0 and 10 volts, or variable resistance (like a potentiometer) on a 10 volt line, both do the same thing. Here are the specs if you need more detail: https://www.jameco.com/Jameco/Products/ProdDS/2148210.pdf
My actual project is my aquarium lighting, which will use 8 drivers total, 2 of which are HLG-120H-42B's.
BTW - is there an easy way to simply turn a driver on/off using and arduino? Most likely with a switch at the AC current before it even hits the driver.