Features:The conversion efficiency of this product can reach more than 98%. MPPT maximum power point tracking is available. The charging voltage is adjustable, and there are 8 gears to adjust the voltage to meet different types of batteries. Automatic identification of 12/24V battery voltage. The charging speed is extremely fast, the battery of 200AH is fully charged for 4 hours, and the charging efficiency is 30% higher than that of the general PWM controller. Super waterproof, waterproof level up to IP43. Ultra-low noise with natural heat dissipation. The shell is fire retardant, safe and reliable. With short circuit protection, over temperature protection, and prevention of nighttime current return. Multi-stage automatic adaptation of charging. Specifications:Condition: 100% Brand NewMaterial: ABSRated voltage: 12V/24V (automatic identification)Output current: 10000mABattery capacity: 10000mAHPanel specifications: 150WMaximum current: 30/40/50AMaximum PV power 12V 1a, b 30A/ 40A/50A: 450/600/750W (MPPT range 15A to 100V)Maximum PV power 24V 1a, b 30A/ 40A/50A: 900/1200/1500W (MPPT range 15A to 100V)Maximum: PV open circuit voltage: 100VTop efficiency: 98%Self-loss: 10maAverage voltage: default value 14.4V/28.6VFloating charge voltage: default value 13.8V/27.6VCharging algorithm: 8 pre-programmed algorithmsType: 20A, 40A, 50A (Optional)Weight:approx. 1.286kg / 45.4oz (50A)Size:approx. 18.6*13.1*8cm / 7.3*5.2*3.1in (50A)Package list:1 * Charge Controller1 * Instruction Manual1 * Parameters TableNote:1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.