/diy/ - Do It Yourself

>>1378697
I had another idea about these moonlights I am building. What if instead of using a switch, I used a photodiode? I think that is what they are called. When the normal lights go off, the moonlights would automatically kick on. I know they already have stuff like this out there, but they command a high price, almost $250!

>The photosensor of the Tunze 7095 Multicontroller is housed in clear acrylic. When the lights go out, this sensor automatically turns the LED on (in the black tube to the right) and vice versa. This assembly is less than 2 inches (5cm) long.