Sendida RGB LED Light Bulb - Color Changing with Remote Control, 4 Modes and Dimmable E27 10W LEDS RGB+W Light Bulb This LED Bulb is RGB+W Color Changing: 16 color choices controlled by remote controller. (CR2025 battery included.) 4 Modes of Fantasied and Magic Color Auto-Change: Flash changes the color displayed every second. Strobe changes the color quickly and skips every 3 seconds. Fade changes the color by blending into the next color. Smooth changes color by ever so softly blending. Dimmable, 4 Level of Brightness Adjustalbe: Press up/down to dimmable up/down of the blub when in 16 color mode. Sendida LED Bulb is a Great Mood and Decorating Light when in RGB color mode, but also a fluorescent light bright enough equivalent to 30W incandescent in W color mode. So it is a RGB+W bulb. Energy Saving, Eco-Friendly, and Easy Installation of E27 base.