Features:<br> <br> 1.Dual MOS anti?backflow circuit, low heat generation. Complete 3?level smart PWM charging management, high efficiency.<br> 2.Large LCD display with backlight, clearly displays system operating information and indicates status and data, convenient to switch modes and parameter configurations.<br> 3.Adjustable charging and discharging parameters, with power?off memory function. Automatically recognize the 12V/24V system voltage.<br> 4.Safe to use, built?in short circuit protection, open circuit protection, reverse connection protection, over current protection. Can be used for home, industry, commercial, etc.<br> 5.There are corresponding icon marks on the wiring terminals, which are used to connect batteries, solar panels and DC loads. Please install it in a well-ventilated place.<br> Specification:<br> Item Type: Solar Charge Controller<br> Material: Plastic<br> Rated Voltage: 12V/24V battery voltage<br> Maximum Charge/Discharge Current: 30A<br> Solar Panel Input Voltage Range: Maximum 18-450W/36V-900W<br> Charging Mode: PWM<br> Over Voltage Protection: 17V.34V<br> Full Charge Power Off: 13.7V/27.4V<br> Under Voltage Power Off: 10.5V/21V<br> Over Discharge Recover Voltage: 12.2V/24.4V<br> PackageList:<br> 1 x Solar Charge Controller<br> 1 x Manual<br> 1 x Wire Connector