433MHz Self-Powered Light Switch and Receiver Control your lights or other devices from the comfort of your bed, sofa, or chair instead of getting up. Easy to install and adds more flexibility to your daily life. Features: One wall panel transmitter controls multiple RF433 receivers and vice versa. Simply attach the switch anywhere you want with double-sided tape, no extra wiring needed. Self-powered switch, no wiring or batteries required, energy-saving and convenient. Control your lights or other devices from the comfort of your bed, sofa, or chair instead of getting up. Provides more flexibility for controlling devices in daily life. Applicable to various types of devices and suitable for homes, offices, hotels, etc. Note: The RF433 relay receiver and the wall panel remote switch must be used together. Specifications: Color: White Material: PC Type: 1*1-gang switch & receiver / 2*1-gang switch & 1*receiver / 1*2-gang switch & 2*receivers (optional) Voltage: AC 110-230V 50/60Hz Max Power: 1100W / 5A Item Size: Switch: 86 * 86 * 13 mm / 3.39 * 3.39 * 0.51 in Receiver: 60 * 28 * 42 mm / 2.36 * 1.10 * 1.65 in Item Weight: Switch: 45g / 1.59oz Receiver: 45g / 1.59oz Package Size: 10.5 * 9.2 * 4.8 cm / 4.13 * 3.62 * 1.89 in Package List: 1 * Switch 2 * Receiver