Fulcrum 30022-308 Remote Control Lighting System, 120 VAC, AA and AAA Battery, 5-Lamp, LED Lamp, 35, White

RF Technology works through walls. 35 Lumens. Lights use 3 AA batteries (not included), Switch uses 2 AAA batteries (not included). Operated by a wireless remote switch which functions up to 60 feet away. Up to 20 lights can be programmed to operate on one switch. A dimmer is included and the lights automatically turn off to save energy.