Features: Featuring 100W high efficiency monocrystalline solar panel with 12V24V output, this car battery charger delivers rapid charging for most vehicles while integrating intelligent voltages stabilization and double USB port for mobile devices. Equipped with a 100A intelligent controller, real time battery monitoring, and double USB port with auto adaptive current, it ensures safe charging for phones, tablets, car batteries via ETFE coated durability construction. Ideal for car owners, outdoor enthusiasts, and traveler needing reliable power solution for vehicles and devices during roads trip, camping, or daily maintenance. Perfect for emergency car battery charging, or powering USB devices in remote locations, combining portability with robusts overcharge/overheats/short circuits protections. Engineered with premium monocrystalline silicon and ETFE materials, this compactly solar charger kit offers multifunctional charging, voltages stabilization, and battery monitoring. Specifications: Component:Monocrystalline Silicon+ETFE Size:Approx.410x280x3mm/16.14x11.02x0.12inch Controller Input Voltages:12v/24v, USB Output:5v/2a Regulated Charging Power: 40W Waterproof rating: IP65 Conversion rate:19.6-20% Suitable for Emergency Charging of Small Electronic Equipment Such as Car Battery Charging, Outdoor Camping Equipment Power Supply, Mobile Phones and Other Small Electronic Equipment Package Includes: 1pc Solar Panel 1pc 100A Controller, 1pc Cable & Battery Clip, 1pc Car Charger note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.