【Energy-saving Rechargeable Bulb with Remote Control】You can use the included charging cable, but a 5V/2A adapter is required (not included). It only takes 2 hours to charge and provides 8-48 hours of working time. 【Removable Base, Easy to Install】The bulb body and E27 screw-type bulb base are removable, and there is a positioning hole between them. It is perfect for areas in the home that need lighting but have no hard wiring or power outlets, such as wall lamps and lamps in the living room, bedroom. The LED wireless bulb adopts a base design for easy installation. The rechargeable bulbs are easy to install, just screw them in, and then install the bulb. 【Remote Control Dimming & Timer】The included remote control is simple to operate, allowing you to quickly turn the battery bulb on and off, adjust the brightness (15%-100%), and achieve stepless dimming with the remote control. Color mode adjustment allows you to choose from 4 light colors (1700K-6000K) and timing functions (15 minutes/30 minutes/60 minutes/120 minutes), as well as breathing light mode and SOS mode, allowing you to customize a convenient lighting experience without leaving your seat. 【Waterproof Portable Wireless Light Bulb】This battery-powered light bulb with remote control can also be used as a night light. It is equivalent to a 40-watt incandescent lamp. You can also press the bulb button directly to change the color. It also has a memory mode that allows the rechargeable bulb to automatically turn on the light last used. e27 bulb button and USB charging port choose silicone rainproof button, waterproof and rainproof, suitable for semi-outdoor and outdoor camping sites. 【Wide Application】This battery-powered light bulb is designed for homes where it is inconvenient to connect to electricity and areas where power outages are frequent.