Key Features of the 8-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 circuits. Specification Distance: 150M (450 feet) Power supply: 12V DC only. Remote 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. When all 8 relays are latched on, the remote-control board draws 240ma or .24 amps of current. That is equivalent to 8 incandescent bulbs.