Foldable lamp armWith the simple design, swan neck shape of lamp arm, using the memory metal tube and the silicone jacket material. Through 10,000 bending experiments, it can achieve different angles of bending. Adjustable color temperatureHigh-quality LED lamp beads, color rendering index up to 88Ra, the maximum brightness of 260 lumens, special 120-degree diffuser design and color beads arranged, color temperature 2700K-6500K adjustable. Professional optical diffusing plateUsing high-quality lamp beads, color rendering index (Ra) up to 88. With blue material, make the light healthier, protect your eyes.Built-in 2000mAh batteryThis Xiaomi yeelight desk lamp built-in 2000mAh battery, lighting time up to 5 hours under the normal use condition( 4000K color temperature, 60% brightness), charging speed 5W. You can us it anywhere such as dormitories, libraries, classrooms, and any other outdoor scene. Micro USB chargingXiaomi yeelight led desk lamp can be charging with the xiaomi mobile power/car USB port/ the computer USB port, the power is supplied via Micro USB data cable, you can use it anytime, anywhere, it is very convenience.Easy operationThere are 3 touch buttons on the lamp platforms, you can adjust the brightness, color temperature, and power. Simple appearanceXiaomi yeelight desk lamp is only 337351150mm, compared to the ordinary desk lamp, it is more compact and portable.