I purchased this from Amazon about a month ago and tested it upon arrival, but I haven't used it since, so I'm putting it up for sale. Therefore, it's as good as new. Product Description (Quoted from the Amazon site) Clip-on Desk Lamp, Eye-Friendly LED Reading Light, USB Clamp Lamp, 3 Color Modes, 10 Brightness Levels Adjustable, Flexible Gooseneck Table Lamp for Bed Headboard, Nail, Home Office, Computer (Black) The lamp is composed of 42 high-quality LED lamp beads with a color temperature of 3000K and 42 beads with a color temperature of 6000K, providing glare-free and flicker-free light. The lampshade adopts a frosted soft light shade that effectively diffuses light and protects the eyes. 【Adjustable 3 Color Temperatures】 Warm light (3000K) creates a warm and comfortable atmosphere, helping to relax the body and mind. Natural warm white light (4000K). Provides clear and comfortable lighting, maintaining visual clarity and concentration, suitable for reading, writing, and office use, for example, in a study room. Cool white light (6000K) provides high brightness and high contrast, enhancing attention and concentration, suitable for scenes requiring high concentration and fine work, such as painting, design, and detailed crafts. 【10-Level Dimming】 10-level dimming meets the eye protection needs of different people in various environments. Whether in a bright room during the day, a dimly lit environment at night, when concentrating on reading or studying, when relaxing or entertaining, or when the eyes are sensitive to light, or when meeting specific eye needs, the brightness passes through 10 levels of dimming to find the most appropriate and comfortable light brightness, minimizing eye fatigue and effectively protecting eye health. [USB Power and 5V/2A Adapter] The USB power plug can be connected to a PC/laptop or mobile power supply, eliminating the need for a spare power socket, and is also equipped with a 74-inch long controller cable. A 5V/2A adapter and cord are long enough to reach a convenient power outlet. #LightStand #DeskLight #LED