Features: *High Efficiency Solar Panel: The product adopts a new conversion way to double the working current of the solar output with the same area and power, providing good performance even in poor light conditions, and the internal diode prevents current leakage at night. *Multiple Protection and Reliable: The solar trickle charger comes with overcharge and reverse discharge protection module, safe to use. Solar panel charger size: 33.5x12.5cm, easy to carry. *Long Service Life: Advanced encapsulation material with multi-layer laminated sheets improves battery performance and extends service life. The module can withstand high wind pressure, snow load and extreme temperatures. *Wide Application: This solar trickle charger is used for all kinds of vehicles, RVs, campers, tractors, motorbikes, snowmobiles, boats and more. *NOTE: This product is suitable for low-power products with 5V power supply or low-power products with 12V power supply. Specifications: *Part Name:Portable Solar Panel Kit *Material:PET + polycrystalline silicon cell *Color:Black *High Universality Fitment:YES *Waterproof rating: IP65 *Solar Energy Conversion Rate: 20% *NOCT (Nominal Operating Cell Temperature): 40-85C *Size: 35x12.5cm *USB output voltage: 12V (The open circuit voltage is 18V to 22V, because charging 12V products requires high voltage charging. ) *Self-consumption: