Safe Material: The e27 remote control socket uses high-quality PC flame retardant shell, which is sturdy and corrosion-resistant. The internal circuit adopts high-strength double-layer fiberglass board with stable performance. No Wiring Required: The wireless bulb socket is very easy to install and use. Just screw in a radio-controlled socket and control the lighting with an external remote control. Remote Control Range: The wireless remote control socket adopts very powerful RF technology, it can pass through walls and obstacles. The remote control distance up to more than 30m in an open outdoor environment, indoor partition wall up to 15m. Compatibility: It can carry an incandescent lamp with a load less than 500W and also the LED bulbs less than 100W, such as energy-saving lamps, fluorescent lamps, etc. Practical: The wireless bulb socket is suitable for E27 screw bulbs, easy to install and use, suitable for home and indoor use. This feature is also very useful for the elderly or people with limited mobility. Specification of E27 Socket Bulb Base Holder: Voltage 220V Remote Control Battery 23A 12V Dry Battery (Battery Not Included) Frequency 315HZ Lamp Head E27 Lifespan 50000H Switch Mode Remote Control Weight Approx. 109g/3.8oz Product Size Approx. 10x7cm/3.9x2.8inch