Key Features of the 12-channel remote pre-wired for the use with any dollhouse or diorama. Each button controls a separate relay to act as an on-off switch. One can control an individual light fixture, complete room or individual circuit. Specification Distance: 150M (450 feet) Power supply: 12V DC only. Remote Control Size: 4" x 2" x 3/4". Receiver, control board measures: 4" x 3" x 1". Each relay (switch) can handle up to 7 amps of current. The circuit board draws only 6 ma of current, but each relay, when activated uses 30ma of current. When all 12 relays are latched on, the remote-control board draws 360ma or .36 amps of current. That is equivalent to 10 incandescent bulbs.