High efficiency single crystal solar cells provide good performance even in low light conditions, and internal diodes prevent leakage of current at night. The 25w solar panel is used to charge MP3 phones or other control devices with dual USB ports, which can be easily charged by USB charging cables through charging devices. You can place the panel in the sun and then use it to charge the device directly.Suitable for outdoor riding, hiking, hiking, camping, travel, etc.High reliability modules withstand high wind pressure, snow loads and extreme temperatures. The reliable and advanced packaging material is laminated with multiple sheets to improve battery performance and provide a long service life. An environmentally friendly solar panel is a device that converts solar radiation directly or indirectly into electricity by absorbing sunlight. Compared with ordinary batteries and rechargeable batteries, solar panels are more energy efficient and environmentally friendly. Specifications: Color: Black + blue Size: 36*33CM Power: 25W, working voltage: 12V, IPmax: 2.5A Temperature: -40 C ~60 C Material: Shell material: plastic backplane material: iron Display mode: LCD screen Battery voltage: 12V/24V Automatic charging current: 40A