An energy efficient rechargeable USB lamp with 3 step dimmer. This lightweight eco-friendly portable lamp is ideal for reading, craft, hobby as well as office use. Specifications: Voltages/ Current: DC5v, 0.5A, 1.8w Light specifications: LED 18 piece Colour temperature: 5000 ~ 5500 Kelvin Switch: Touch switch with a 3 step dimmer Charging Time: 3-4 hours Usage time: Up to 6 hours USB Cable: 1.5m for use with computers/laptops and other USB portal. Weight: 175 grams Dimensions: 78 x 78 x 248mm