PROMIER CORDLESS LIGHT SWITCH Promier Products Brand New. Promier Products / /. Brand New. This wireless light switch is perfect for under cabinets, under the sink, closets, utility rooms, tool sheds, and more. It installs in seconds with the included double sided hook and loop fasteners, magnets, or picture hanger hole. No electricity or wiring of any type is required as the Promier Wireless Light Switch is battery powered. 200 Lumen 1.5 Watt Super Bright COB LEDs. Powered by 4 AAA batteries (included). Each Wireless COB LED Light Switch measures 4.5 x 3 by 1.5 inches.