1/2/3 Gang Wireless Wall Switch RF 433Mhz Interruptor Light Switch Remote Control 86 10A 110V 220V Receiver for Lamp LED Fan 433Mhz wireless Wall Switch rf 86 wall panel transmitter Safety Switch and AC 110V 220V relay interruptor for Light Lamp Fan Description: *Single key, two keys and three keys are optional Working voltage: DC12V (one 27a / 12V battery) Operating current: 10mA@12V Encoder: 1527 Specifications: High quality materials for safe use It can be used with 433 frequency switch The design is simple and beautiful Package Included: 1 * switch, 1 * adhesive tape, 2 * expansion screw Notes: This product requires 12V27A dry battery and needs to be purchased separately