Descriptions: It can adapt to a variety of complex and harsh weather conditions. Portable and frame design fit for outdoor and indoor usage. Stay away from strong corrosive objects. Specifications: Power: 5W Working voltage: 5V Material: polycrystalline silicon Size: 88*142mm Color: black Package included: 1 x Solar Panel Charger Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks!