Features Exceptional Efficiency: Achieve up to 99.9% tracking efficiency with auto focus technology, maximizing energy output from your solar panels Versatile Compatibility: Ideal for RVs, yachts, households, and camping, this device adapts seamlessly to various environments for reliable power management Smart Monitoring: Utilize Bluetooth connectivity for wireless monitoring via your mobile phone, enabling real-time performance tracking from anywhere Features: 1、Maximum power point tracking efficiency is up to 99.9% or more, realize auto focus and tracking 2、The product is suitable for RV, yacht, household, camping and other scenes 3、Communication supports mobile phone Bluetooth, can realize wireless monitoring 4、Excellent aluminum material, light weight, good strength and good resistance 5、IP54 high waterproof rating, practical and , easy to install Specification: Item Type: Solar Controller Model: Win500-MPPT Material: Aluminum System Voltage: DC12V/24V (automatic identification) Power: DC12V: 260W, DC24V: 520W Maximum Charging Current: 20A Maximum MPPT Tracking Efficiency: >99.9% Maximum Charging Conversion Efficiency: 98% Communication: Bluetooth Grounding Type: Negative ground Connection Terminal: 10AWG (5mm²) Working Environment Temperature: -20 ~ +55℃ Working Environment Humidity: 0-100%RH Protection Level: IP54 Size: Approx. 20mm / 0.8in 64mm / 2.5in 4.5mm / 0.2in 107mm / 4.2in 164mm / 6.5in 32mm / 1.3in Diameter: Approx. 4mm / 0.2in Package List: 1 x Controller 1 x User Manual 1 x Sensor Package List 1 x Controller 1 x User Manual 1 x Sensor