Specifications: Name: Solar controllerVoltage: DC 12V / 24V automatic identification10A/20A/30A/40A Maximum PV input voltage: 50V50A/60A Maximum PV input voltage: 100V10A/20A Applicable battery type: ternary lithium battery, lithium iron phosphate battery, lead-acid battery 12/24V30A/40A/50A/60A Applicable battery type: lead-acid battery 12/24VSelf-consumption: Charging method: PWMOvercharge protection: 14.4V / 28.8VOvercharge and floating charge: 13.8V / 27.6VCharging recovery voltage: 12.6V/25.2VOver discharge protection: 10.8V / 21.6VOver discharge recovery: 12.6V/25.2VDual USB output: 5V/2.1A (charging mobile phones, for iPads, etc.)Operating temperature: -20C to 55CTemperature compensation: -24mv/ FOR 12V systemProduct size: as shown in the picture Load control mode: Working all day, pure light control, light time control. Product weight: 280g/420g/600gPacking List:1 X Solar Panel Controller1 X User Manual Automatically identify system voltage: 12/24V automatic identification. The positive poles of solar panels, batteries, and solar charge controllers are all connected together, and negative MOSFETs are used to control the circuit in series Optimized control chip: Using the optimized control chip, it truly realizes three-stage PWM charging, and the charging efficiency is 15% higher than that of products of the same level. Reliable overvoltage protection, short circuit protection, overload protection, overcharge protection, overdischarge protection, reverse connection protection, overheating temperature protection Good heat dissipation performance: The shell is made of high-quality flame-retardant PC material, which is firm and durable. The back cover is made of aluminum alloy heat sink cover, which greatly improves the heat dissipation performance, and improves the conversion efficiency and service life of the product Easy to install and operate: Large LED display, can clearly display working status and data, 2 function power buttons, switch mode and parameter configuration Multi-purpose application: Load control mode can be selected, night street lamp timer function can be reset; discharge capacity control; ampere-hour discharge counter. Accurate temperature compensation, automatic correction of charge and discharge voltage, improve battery life Automatically identify system voltage: 12/24V automatic identification. The positive poles of solar panels, batteries, and solar charge controllers are all connected together, and negative MOSFETs are used to control the circuit in series Optimized control chip: Using the optimized control chip, it truly realizes three-stage PWM charging, and the charging efficiency is 15% higher than that of products of the same level. Reliable overvoltage protection, short circuit protection, overload protection, overcharge protection, overdischarge protection, reverse connection protection, overheating temperature protection Good heat dissipation performance: The shell is made of high-quality flame-retardant PC material, which is firm and durable. The back cover is made of aluminum alloy heat sink cover, which greatly improves the heat dissipation performance, and improves the conversion efficiency and service life of the product Easy to install and operate: Large LED display, can clearly display working status and data, 2 function power buttons, switch mode and parameter configuration Multi-purpose application: Load control mode can be selected, night street lamp timer function can be reset; discharge capacity control; ampere-hour discharge counter. Accurate temperature compensation, automatic correction of charge and discharge voltage, improve battery life