Features1. Wide application This polycrystalline silicon solar charging panel is suitable for motorcycles, boats, tractors, trailers, trucks, lawn mowers, RVs, etc. Can also be used for gate openers, electric fences, chicken coops, sheds and lights.2. High efficiency Made of polycrystalline silicon and metal, high temperature and water resistance, and can easily handle the harsh outdoor environment. It has a high charging efficiency to achieve the most ideal charging effect in a limited space.3. Robust construction The solar panel frame is made of lowiron tempered glass and a rustresistant aluminum frame, which can prevent wear and tear for a long service life. The polycrystalline silicon panel can generate more electricity every day under sunny conditions.4. Battery protection The charge controller can prevent battery overcharge, overdischarge, overvoltage, short circuit and reverse current problems. It prevents the battery from being discharged due to longterm nonuse. Indicators on the controller make it easy to know the status of charging and discharging.5. Builtin intelligent controller The charging algorithm of the solar charger has been upgraded to automatically charge during the day and turn off at night without consuming battery power.SpecificationItem Type Solar Panel Charger SetSolar cell Polycrystalline siliconProtection level Ip65Solar panel power 10WControl system voltage 12V24V AdaptiveSolar panel working voltage 18VSolar panel open circuit voltage 21.6VSolar panel short circuit current 0.55A MaimumOutput Port Dual USB, DC5521 FemaleProduct features Integrated voltage regulator module, 5V dual USB voltage regulator outputSolar Panel Size Appro. 435 200 3mm 17.12 7.87 0.118inFitIt can be widely used in batteries for motorcycles, boats, tractors, trailers, trucks, lawn mowers, RVs, etc. Can also be used for gate openers, electric fences, chicken coops, sheds and lights