13 Color Modes & 2 Dynamic RGB Modes: This portable LED light features 13 preset RGB colors. In SMOOTH mode, 13 different colors are displayed in a gradual cycle. In FADE mode, you can set your favorite color and watch the breathing light slowly change color. We aim to create a warm, happy, and romantic atmosphere for you. Cordless LED Bulb: Say goodbye to tangled cords and limited outlets. Never worry about power outages again. Illuminate the dark corners of your home without the need for AC power. Rechargeable Light Bulb: This light bulb has a built-in rechargeable battery. Simply charge it for 2-4 hours with the included charging cable and enjoy over 20 hours of continuous use (the bulb will show a red light while charging and will not light up when fully charged). The bulb features high-efficiency LED technology to maximize energy efficiency and reduce the need for frequent charging. For safety reasons, rechargeable bulbs may be slightly dimmer than corded bulbs. Easy Installation: The bulb has a universal E26 screw base for seamless installation into a variety of fixtures. The bulb itself has a built-in magnet allowing for detachable mounting (no need to frequently screw and unscrew the E26 base). There is also an additional metal tab that allows the bulb to be attached to any flat surface. The bulb is 3.3 inches wide, so please measure your tapered shade in advance. If the bulb is too large, you can use an adapter extension._MGF