Features: Solar energy powered, which is clean, endless and environment-friendly. Absorb solar energy on daytime and provide lighting on dark. Built-in rechargeable batterys, can also be charge by the DC5V USB cable. Fixed the panle in the roof or a place with sufficient sunlight. Perfect for home lighting, camping, cooking, working, reading. Specifications: Material: PC & aluminum Solar panel: 5V/1.5W Light color: 6500k white Luminous flux: 130lm Battery: built-in 3.7V/600mAh lithium Charge time: 3-5h Working time: 3-5h Lifespan: 50000h USB cable: 3.5m / 11.48ft Panel size: 110 * 60mm / 4.33 * 2.36in Lamp size: 105 * 60mm / 4.13 * 2.36in Package weight: 165g / 5.82ounce Package size: 110 * 70 * 70mm / 4.33 * 2.76 * 2.76in Notes: 1. Please allow 1-10mm error due to manual measurement, thanks for your understanding! 2. Mount the panel on where can get enough sunlight. Packing List: 1 * Solar Lamp