I have a ceiling light in my kitchen, which is nice to make the room well-lit but not convenient for actually doing kitchen work (the light is in the middle of the room, so when I stand near a working surface, my body casts shadow on the surface).
I want to add under-cabinet LEDs to light the surfaces, but I'd rather not add another switch. Best if I can install them in such way that they're controlled by the same switch as the main light. This switch is an on-off switch that is only wired to the middle of the ceiling.
I'm looking for a wireless switch that can turn the under-cabinet lighting on and off according to the main lighting, without replacing its switch. I.e., that the wireless transmitter will be activated by the main lighting circuit being closed and open.