- Joined Dec 23, 2017
I made a few Lichtenberg figures and I want to mount them in shadow boxes. I built some LEDs into the box (Three UV along the top and one red on the left under the blue tape) and I am planning on pouring about an inch of epoxy to cover the LEDs and disperse their light. For a power supply, I am using a battery box that holds 8 AA batteries providing 12 VDC. I'm planning on adding a pot to each circuit so I can independently dim each string of lights, but I think it would be more efficient to use 555 timers. The problem is, I don't have any experience with 555s so I don't know how to design a circuit that could independently dim two LED strings with different voltage and current values. Does anyone have any advice or thoughts? Any advice on using 555s or thoughts on my current design would be greatly appreciated.