Specification Size: 90*90*31mm inner diameter: 55mm Power supply: USB 5V/1A Color temperature: 3500-650OK Maximum clamping thickness: 1.5mm Number of LED lights: 20 white lights + 20 yellow lights Maximum power: 3.6w Battery capacity: 200Mah Battery working time: full battery life 1.2-3h Number of LED lights: 20 white lights + 20 yellow lights Maximum power: 3.6w Battery capacity: 200Mah Battery working time: full battery life 1.2-3h Features: Show Your Beauty AnytimeYou will have 3 color options (Cool/Warm/Natural) to meet your different selfie needs. One Button to Control AllDifferent from other mobile phone ring lights, the selfie ring light has only one button to control different modes and adjust brightness, with a large dimming range. Rechargeable Selfie Ring LightNo need to change batteries. Fully charged in 30 minutes, continuous use for 1~3 hours (depending on different modes and brightness levels). Design for Mobile Phones and Laptops0.59 inch clamping size fits all kinds of mobile phones and laptops. There is a soft gel strip on the clip to protect your device from scratches during use. Not Just a Selfie LightCan be used as a fill light when shooting subjects, a makeup light clipped on the mirror, or an emergency light in the dark (press the button twice to enter S.O.S mode).