MPPT T40-40A Solar PWM Controller Features: 1. The characteristic of this controller is that the working voltage of the solar panel can be tracked to the maximum current emitted by the solar panel by intelligently adjusting the solar panel, so that the solar panel always works at the maximum power point of the V-A characteristic curve. Compared with ordinary solar controllers, the utilization of solar panel power generation has increased by 10-30% 2. Vivid LCD graphic symbols, concise button mode 3. Intelligent PWM charging method with automatic temperature compensation 4. Adjustable slave discharge control parameters, settable load working mode 5. Battery reverse discharge, undervoltage, reverse connection protection and other protection functions parameter: 1. Net weight: 0.43 kg 2. Size: 16.5x9.5x6 cm 3. Rated charging current: 40A 4. Floating charge voltage: 13.8V 27.6V 5. Undervoltage protection: 10.6V 21.2V 6. Over-discharge recovery voltage: 12.6V25.2V 7. Working temperature: -10-60 degrees Celsius 8. Storage temperature: -30 -70 degrees Celsius 9. Wiring specification: less than or equal to No. 6 AWG (12 square millimeters)