Features Efficient Solar Charging Over 99.5% MPPT Tracking Efficiency: Maximizes solar energy harvest under changing sunlight conditions. Up to 98% Charge Conversion Efficiency: Converts more solar power into usable battery charging energy. Supports up to 1200W PV Input: Handles larger solar arrays for faster battery charging. Flexible System Compatibility 12V/24V Auto Detection: Automatically identifies the system voltage during installation. 100V Max PV Open Circuit Voltage: Supports flexible solar panel configurations and system expansion. Supports Multiple Battery Types: Compatible with Crystal, GEL, AGM, Flooded (WET), Calcium, LCO, LFP, and LTO batteries. Smart Monitoring Built-In Bluetooth Monitoring: Monitor real-time charging status on your smartphone via the Tuya Bluetooth Module. LCD Display: View solar input, battery status, and charging information. Optional Accessories: Compatible with an optional remote meter and battery temperature sensor. Comprehensive Reliability Certified to UL 1741, FCC, CE, and RoHS standards. Advanced Electronic Protection: Protects against over-voltage, reverse discharge, and circuit faults. Conformal Coated Circuit Board: Improves long-term durability in demanding environments. Specifications System Nominal Voltage: 12/24V Auto Max. PV Open Circuit Voltage: 100V DC Charging Technology: MPPT Max PV Charging Current: 40A Max. Recommended PV Input Power: 600 Watt (12V) / 1200 Watt (24V) Charge Conversion Efficiency: ≤98% MPPT Tracking Efficiency: >99.5% Battery Type Preset: Crystal, Gel, AGM, WET, Calcium / LCO, LFP, LTO Housing Case Color: Black / Grey IP Grade: IP43 for Inside PCBA, IP22 for Connection Area Dimensions (L × W × H): 7.7 × 5.5 × 2.9 in Net Weight: 2.58lb Package Dimensions: 10 × 7 × 5 in Gross Weight: 4 lb