This is a remote-controlled and color-changing LED RGB bulb. It is suitable for many purposes in life. It has a beam angle of up to 270 degrees, 6500K warm white, 450 lumens, 85CRI super high color rendering. It is very easy to use and adjust color and brightness. The lamp has 16 colors to choose from, 3 brightness levels to adjust, providing different lighting effect settings to meet different environmental needs and reflect different moods. It is environmentally friendly and energy-saving as it corresponds to the brightness of a 40W incandescent bulb. The one-button night light function can instantly provide dimmer light to meet sleep needs. Two light modes allow you to set the appropriate atmosphere at any time to give you a better visual experience. Flashing mode gives you a stage experience when enjoying concerts or stage performances, just let the light and atmosphere match to create an immersive feeling. Steady mode automatically provides cyclic switching of light color in different atmospheres. It also adjusts the rhythm and creates more surprises and romance. Memory & Synchronization: This lamp can remember the last color or mode we used. Synchronization is a revolutionary innovation for environments where multiple lamps are used together, such as wall lamps, fan lamps, chandeliers, table lamps, and more. When we use flashing and steady modes, the rhythm of the lamp's color change can always be consistent. Note: One remote control can control all lamps.