Adjustable brightness and color temperature: A short press toggles the light on/off and the color temperature. A long press allows for continuous dimming. The LED wireless desk lamp offers three color temperatures (3000K, 4500K, and 6000K) to meet your needs at different times of the day. High-capacity battery and wireless design: Built-in 1800mAh USB rechargeable battery. The LED touch light can operate for 8 hours in lowest power mode and 6 hours in highest power mode. It can serve as an emergency power source during power outages or outdoors. [Dimensions: 31cm high * 8cm wide], circular design, 360-degree illumination, and flicker-free integrated LED light source ensure visual comfort. Aluminum alloy housing is scratch-resistant and durable. Ideal gift: This desk lamp has a simple and unique design, especially the side lighting, which creates a beautiful atmosphere. Made of metal aluminum alloy, the lamp retains its color after long-term use. The battery-powered lamp can be placed anywhere, indoors or outdoors, on dining tables, nightstands, and desks.