Bullet points:1, MPPT + PWM coexist function: the solar charge controller automatically adjust to the regulation of the charging mode (MPPT/PWM mode), and automatically adjust the charging according to the battery type.2, A little tip: for example, lithium batteries need to use the MPPT charging method, and those that can charge 12V batteries use the PWM charging method.3, LCD display: the solar charge controller is equipped with a large LCD screen, charge and discharge current display, cumulative power generation and discharge power query, temperature display, lighting control + delay control; adjustable charge and discharge parameters, with functions such as power-off memory.4, Dual ports: The solar charge controller has two USB ports, the maximum current is 2.5A, and supports with mobile phone charging.5, Multiple functions: The solar charge controller function is equipped with all necessary safety devices, the control parameters of the system are adjustable, easy to set up and operate. Built-in short circuit protection, open circuit protection, reverse connection protection and overload protection. Counter-current protection, low heat generation, self-recovery function. Description:Solar charge controller is suitable for solar green light, solar lamp, advertising board, home solar power generation, marine solar power generation and outdoor residential solar power generation. Features:Real-time display of temperature, charge current and discharge current. Current MPPT autofocus charging, high charging efficiency, charging process does not stop detection, two-way focus tracking. Charge 12V /24V lithium battery, super wide adjustable charge and discharge. The minute is adjusted when the output is off, which is more convenient (there is no adjustment when the market is available only). Built-in overheating, overcurrent, short circuit, open circuit protection, fault elimination, automatic driver recovery. Bi-directional MOS tube surge protection circuit, high power charging mode, ultra-low heat. R5.0 solar charging DC plug, R5.0 DC lamp DC output DC plug, easy to connect. Specifications:Name: LCD Solar ControllerMain Color: BlackMain Material: ABS Voltage: DC 12V/24V Rated Current: 10A/20A/30A40A/50A/60A/100A (Optional)Maximum PV Voltage: 50V Display Screen、LCD ScreenSelf Usage: lt; 10MAnload Protection: 14.4V/28.8V Float Charge Charge: 13.7V/27.4V Charge Recovery Voltage: 12.6V/25.2V Over Discharge Protection: 10.7V/21.4V Over-discharge Recovery: 12.6V/25.2V USB Dual Output: 5V/2A (Mobile Phone Charging, etc.)Operating Temperature: -35°C-60°C12V fit for 18V solar panel, 24V fit for 36V solar panelProduct Size: About 150*78*35mm / 5.9*3.1*1.4inProduct Weight: About 155g / 5.5ozPackage Size: About 200*100*90mm / 7.9*3.9*3.5in Package Weight: About 155g / 5.5oz 12.0v Lead-Acid Battery Corresponding to:Float Voltage is set to: 13.6Recovery Discharge Voltage is set to: 12.6 Discharge cut-off voltage is set to: 10.712.8v lithium iron phosphate battery corresponding to:Float voltage is set to: 14.6Recovery discharge voltage is set to: 13.6Discharge cut-off voltage is set to: 11.01.1v lithium battery corresponding to:Float voltage is set to: 12.6Recovery discharge voltage is set to: 11.6Discharge cut-off voltage is set to: 9.6Feature:1. Always keep the battery in a state of fill voltage.2. Prevent overcharging of the battery.3. Prevent battery over-discharge.4. Prevent solar panel battery charging from being reversed at night.5. Reverse polarity for batteries6. Reverse Polarity for Solar Panels7. When the battery voltage is low, the controller automatically cuts off the load from the system. If the battery voltage returns to normal and the load restarts.8. According to the battery voltage level, the controller can automatically set the charging voltage, load voltage, load recovery voltage. (The parameter is default below 25 °CStan, locked by CPU procedure, can not adjust.)9. The controller automatically compensates the charging voltage temperature according to the changes in ambient temperature.10. Thunder ProtectionPacking List:1 x Solar Panel Battery Charge Controller1 x User Manual1 we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2 Note: Other payment information via this link: