Features Maximum Efficiency Tracking - Achieve up to 99.9% efficiency with advanced auto focus technology for optimal energy capture from your solar panels Versatile Compatibility - Ideal for RVs, yachts, homes, and camping, this regulator meets diverse energy needs across various outdoor and indoor settings Bluetooth Connectivity - Easily monitor your energy system wirelessly through your mobile device, ensuring real-time data access and management Durable Lightweight Design - Constructed from high-quality aluminum, this regulator combines strength and lightweight properties for easy installation and long-lasting performance Superior Waterproof Protection - With an IP54 rating, this device is resistant to water and dust, making it practical for outdoor use in various weather conditions 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 wirel 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