E27 socket.Fits standard E27 socket, no special lamp-base necessary. 24Keys.Easy to turn on/off, dim/brighten, and change colors with the remote control. Remote Control.Memory Function-The bulb will remember the color that turned off the light last time. Multi-level dimming, ground remote control dimming, the lowest brightness can be adjusted to slightly bright, to meet the needs of night lights. Multi-functional,perfect for for homes, offices, museums, galleries, stores, malls, shop windows, indoor outdoor garden party decor. Specification: Light Head: E27 Luminous Flux: 210lm Light beam angle: 120 Degree Material: PC Input: 85-265V Long Life:30000H IP Rate:IP54 Size:Approx.78x45mm/3.07x1.77inch Package Includes: 1 Piece Light Bulb 1 Piece Remote Controller