Features A smart multi-purpose solar charge and discharge controller. Automatic temperature compensation, adjustable charge and discharge control parameters. Each control parameter can be flexibly adjusted to meet your different application requirements. Automatic detection of system voltage level, intelligent PWM charging process. With charging and discharging safety hours accumulation function, battery discharge protection, battery low voltage protection, battery reverse polarity protection, overload, short circuit protection. Very user-friendly interface with LCD display. Adjustable operating mode charging. Image LCD graphic shield, easy button operation. Specification: Item Type: Solar Charge Controller Standard: CM5024. Rated voltage: 12V/24V lead-acid battery voltage. Maximum charge and discharge current: 50 A. Solar panel input voltage range: 18V-800W/36V-1700W Working time setting: 1-24 hours adjustable. Charging mode: PWM Overpressure protection: 17 V/34 V. Full separation: 13.7 V/27.4 V. Low voltage shutdown: 10.5V/21V Over discharge recovery voltage: 12.2V/24.4V No-load loss: no-load loss: ≤10mA, loop step-down: ≤170mV, temperature compensation: -4nv/cell/C. Wiring specification: >3#AWG (25mm²) Working environment temperature: -25°C to 55°C. Package list: 1 x controller. 1 x temperature sensor. 1 x user manual (English language not guaranteed). Package List 1 x Controller 1 x Temperature Sensor 1 x User Manual