1Environmental protection, free from the power of the sun, take the green road 2High conversion efficiency, our polycrystalline silicon efficiency can reach 17%. 3Flexible solar panel with a maximum bendable 30 degree arc. 4Short circuit and surge protection technology keeps you and your equipment safe. 5Durable, waterproof and long lasting.Features: Environmental protection, free from the power of the sun, take the green road High conversion efficiency, our polycrystalline silicon efficiency can reach 17%. Light and thin, easy to use and carry. The charging temperature is -20 - 70 degrees Celsius. Flexible solar panel with a maximum bendable 30 degree arc. Short circuit and surge protection technology keeps you and your equipment safe. Durable, waterproof and long lasting. Widely used, suitable for security cameras, laptops, car batteries, automobiles, RVs, s, airplanes, satellites, space stations, outdoor farming, planting, tourism, solar street lights, etc. Controller: 1. Use industrial grade master chip. 2. Large-screen LCD display, adjustable charging and discharging parameters, with power-off memory function. 3. Complete 3-stage PWM charge management. 4. Built-in overcurrent, short circuit protection, open circuit protection, reverse connection protection, all self-recovery type, does not damage the controller. 5. Dual USB output, maximum current up to 25A. Support mobile phone charging. 6. Double MOS anti-backflow circuit, ultra low heat. Specification: Condition: 100% Brand New Material: ABS Color: As picture shown Maximum power (Pmax): 15w Open circuit voltage (Voc): 18v Short circuit current (Isc): 1.3A Maximum power voltage (Vmp): 18v Maximum power current (Imp): 0.8A STC (standard test conditions): 1000W / square meter, AM = 1.5, 25 C Maximum system voltage: 1000V Output: USB 5V and DC 18V Size: 411*200*2.5mm/16.2*7.9*0.1in System voltage: 12V/24V adaptive Rated charging current: 10A Rated discharge current: 10A Maximum PV voltage: up to 23V for 12V batteries. At 24V, the maximum is 46V. Floating charge voltage: adjustable at 13.7V Discharge cut-off voltage: 10.7V adjustable Discharge recovery voltage: 12.6V adjustable Charging recovery voltage: 13V USB output: 2 USB outputs, 5V/2.5A maximum Standby current: