Feature: 1. Efficient Charging: This solar panel adopts monocrystalline silicon technology, with 100W output power, providing efficient and convenient charging, and suitable for various car battery 2. Solar Controller: Equipped with a 100A controller, stable and reliable, ensuring battery security; With complete charging management, improving system performance, compatible with 12V 24V system 3. Comprehensive Guard: The solar controller provides comprehensive guard to prevent battery overcharging, overvoltage, discharge, short circuit, with reverse polarity guard, and extends battery life 4. Dual USB Ports: This solar charging controller is equipped with dual USB ports, making it convenient to charge both phones and other devices simultaneously, greatly improving work efficiency 5. Applicable Scenes: This solar panel and controller kit is suitable for RV, boat, roof, floor, garage, fence, security camera, greenhouse, and other flat surfaces, making it convenient and practical Specification: Item Type: Solar Panel Charger Solar Panel Power: 100W (no power storage function) Solar Panel Size: Approx. 41 x 28cm / 16.1 x 11in Output Voltage: 12V 24V Controller: 100A Weight: Approx. 608g / 21.4oz. Package List: 1 x Solar Panel 1 x Controller 1 x Clamp 1 x Connecting Cable