Features: 1. Button design. The button realizes light from weak to strong, and the LED has no stroboscopic, green healthy light source. 2. USB interface. Ultra-thin and light, high light uniformity, powered by USB cable, easy to access any USB port. 3. Intelligent memory. 0-100% stepless brightness control with memory function allows you to adjust the lighting freely, and the same brightness can be achieved the next time you turn it on. 4. Whether it is for yourself, friends or family, it is an excellent gift choice. 5. Excellent quality and durability. Specifications: Frame size: Approx. 335*233mm/13.19*9.17inch Work area: Approx. 305*233mm/12.01*9.17inch Thickness: 4mm Material: Acrylic Light source: LED Voltage: 5V Dimming button: Touch on/stepless gradient intelligent memory function Power: 2.2W Number of lights: 18 LUX: 1800-2700 Package List: 1 * 1.5 m USB cable 1 * English user manual 1 * Copy table .