With battery protection switch, it can prevent charging short circuit, which is safe to use. The flexible hose can be bent arbitrarily, and provide ever-changing lighting angle. It is made of good quality ABS material, durable to use. The length of this product is 24cm, the width is 12cm and the height is 6.5cm. It uses optical technology to adjust, reduce the proportion of blue light, and creates a relaxing and nature light environment. LED desk lamp is suitable for desk, bedroom, bedside, drawing, reading, studying, etc. Pure white light (6500K) is for clear illumination and efficient office. Warm white light (4000K) has neutral color temperature for easy reading. Warm light (3000K) is gentle light, which has comfortable light and shadow. Item Name: Desk Lamp Material: ABS Lamp Color: Pure White Light, Warm White Light, Warm Light Input Voltage: 5V Whole Lamp Power: 3W Battery Capacity: 1800mAh Battery (Included) Using Time: Leisure: 32 Hour, Reading: 10 Hour, Lighting: 4 Hour Illumination: 300 Lux Color Rendering Index: CRI>80% Color Temperature: 3000K～6500K (Three Colors Adjustable) Luminous Flux: 280Lm Lamp Beads: 24PCS SMD2835 Features: 3 Light Modes, Adjustable, Flexible Size Details: Size: 24cm x 12cm x 6.5cm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Desk Lamp 1 x Data Cable 1 x User Manual