Feature:1. High Power: High efficiency monocrystalline silicon panel, which can generate more power under full sunlight and achieve the most ideal charging effect in a limited space.2. Security Protection: The panel provides multiple protections, such as overcharge protection, overdischarge protection, short circuit protection, overload protection, reverse connection protection, etc.3. Stable Performance: Monocrystalline silicon, metal and ABS material, high temperature resistance, IP65 waterproof, and can easily cope with the harsh outdoor environment.4. Low Consumption: Solar battery charger automatically charges during the day and automatically shuts off at night without consuming battery power.5. Built in Intelligent Controller: The charging algorithm of the solar battery charger has been upgraded to automatically charge during the day and shut down at night without consuming battery power.Specification:Item Type: Solar PanelMaterial: Monocrystalline siliconProtection Level: IP65Solar Panel Power: 25WController System Voltage: 12V/24V adaptiveSolar Panel Size: Approx. 540 x 280 x 3mm / 21.26 x 11.02 x 0.12inSolar Panel Operating Voltage: 18VSolar Panel Open Circuit Voltage: 21.6VSolar Panel Short Circuit Current: 1.38A (maximum)Output Port: Dual USB, DC5521 femaleProduct Features: Integrated voltage regulator module, 5V dual USB voltage regulator outputApplication: Widely used in batteries for motorcycles, boat, tractor, trailer, truck, lawn mower, RV etc. Also be used for gate openers, electric fences, chicken coops, sheds, and lights..Package List:1 x Solar Panel1 x Controller 1 x Clip Line 1 x Car Charging Cable 4 x Sucker 2 x Buckle 1 x User Manual