I'm looking to buy/make some lights that turn on when they detect light. My wife and I live in an apartment that's small and poorly-lit. We can't install permanent light fixtures, and all the lamps we've looked at take up too much floor space or would have to be placed in walking areas to be useful. So I'm looking for some kind of light fixture that can be mounted on a wall or ceiling with command strips or small nails.
I'd like some lights that turn on when other lights are turned on. Like the opposite of a night light. That way we can still control all the lights in a room with one switch without changing the wiring. The light controlled by the switch would turn more lights on.
I think I could easily build a circuit to do this, with a photoresistor and some NPN transistors, but I don't have the tools to make something that would look nice right now. Is there already a commercial product that would fit our needs?