Item Type: Solar Charge Controller Material: Aluminum Weight: Approx. 1236g / 43.6oz Product Size: Approx. 17.1x13.8x4.7cm / 6.7x5.4x1.9in Protection Level: IP66 Noise: < 55dB Power: 600W Photovoltaic Input Tracking Voltage: Minimum 17V, Maximum 84V Maximum Output Voltage Vo: Minimum 10V, Rated 13.8V, Maximum 30V Maximum Output Current: Conditions: 600V, Rated 600/Vo (Unit A), Maximum 600/Vo Or 43 (Unit A) Conditions: 12V System, Rated 40A, Maximum 43A Conditions: 24V System, Rated 20A, Maximum 22A No Load Loss: Rated 0.5W-0.8W Voltage Adjustment Rate: Rated 1% Load Adjustment Rate: Rated 5% PWM Conversion Efficiency: Rated 97% MPPT Efficiency: Rated 99.5% Heat Dissipation Mode: Rated Intelligent Air Cooling Charging Mode: Rated Constant Voltage, Constant Current Internal Temperature Protection: Rated 110 Working Environment Temperature: Full Load, Minimum -40 , Maximum 65 Storage Temperature: Minimum -40 , Maximum 125 Application Environment: 1. In A Dry, Clean And Ventilated Environment. 2. Keep Away From Direct, Humid, And Acidic Environments. 3. Avoid Dust When Using. 4. The Distance Between The Machine And The Controller Should Be Greater Than 0.5 Meters. 5. Do Not Use In Inflammable And Explosive Environment. Beware Of Flame And Spark. 6. Ambient Temperature: -20-60 7. The Maximum Humidity Is Below 85%. (-25-50) Uses: Solar Power Generation, Outdoor Energy Storage Power Supply, RV Backup Power Supply, Household Appliances, Lighting, Digital Products, Solar Toy Car