433Mhz self-powered light switch and receiver, control your lamps or other devices while staying comfortably in your bed, sofa or chair instead of getting up. Easy to install and provides more flexibility in daily life.Features: Supporting one wall panel transmitter controls multiple RF433 receivers and vice versa.Simply stick the switch anywhere you want with the double-sided adhesive tapes, no extra wires needed.Self-powered switch, no wiring and battery required, energy saving and convenience.Control your lamps or other devices from the comfort of your bed, sofa or chair instead of getting up.Provides more flexibility to control devices in daily life.Apply to types of devices and suitable for home, office, hotel, etc. Noticed: The RF433 relay receiver and wall panel remote transmitter switch should 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 * receiver (optional) Voltage: AC 110-230V 50/60Hz Maximum Power: 1100W/5A Item Size:Switch: 86 * 86 * 13 mm / 3.39 * 3.39 * 0.51 inch Receiver: 60*28*42mm/2.36*1.10*1.65inch Item Weight:Switch: 45g / 1.59 oz Receiver: 45g / 1.59oz Package Size: 10.5*9.2*4.8cm/4.13*3.62*1.89inch Package List: 2*switch 1*receiver