raitl
New Member
Hi. I need to be able to dim fluorecent light tubes for my aquarium, as to create a more realistic day-night cycle for the fish. It could be done with a simple linear pot, but since I have 5 18W tubes, making a total of 90W, then that's kinda unpractical. And the lighting on my new tank is going to go well over 200W, so... And the reason I don't want to use the commercially available dimmable electronic ballasts, is that they cost...alot!
My current lead is: PWM controlling the rectified +350V supply of the tube... but I can't see how it could be achieved...
Any help and/or feedback would be appreciated!
My current lead is: PWM controlling the rectified +350V supply of the tube... but I can't see how it could be achieved...
Any help and/or feedback would be appreciated!