Features 1、[High Conversion Rate] This solar charger adopts monocrystalline silicon and high light transmittance ETFE materials, features high conversion rate and high charging efficiency. 2、[Intelligent Controller] Built in intelligent charging controller, upgraded charging algorithm, the charging efficiency can be improved by 20% to 30%. 3、[Low Power Consumption] This solar panel will automatic charging during the day and automatic shutdown at night, no consumption of battery power. 4、[Wide Compatibility] This solar panel can charge and maintain for 12V sealed acid car, marine, RV, powersport and deep cycle batteries including rich, gel, AGM, SLA, VRLA and lithium ion batteries. 5、[Comprehensive Protection] Featuring overcharge, overvoltage, discharge, short circuit, reverse polarity protection, IP67 waterproof and sparkproof, this solar charger provides full protection for battery. Specification Item Type: Solar Battery Charger Material: Monocrystalline silicon, ETFE Power: 20W Solar Panel Size (Length x Width): Approx. 435x200mm/17.1x7.9in Waterproof Grade: IP67 Package List 1 x Solar Battery Charger 1 x Battery Connection Cable 1 x Car Charger Cable 4 x Suction Cup 1 x Manual