Specification： Name: LCD screen solar controller Voltage: DC 12V / 24V Display method: LCD screen Self-consumption: <10MA Overcharge protection: 14.4V / 28.8V Overcharge and float: 13.7V / 27.4V Charging recovery voltage: 12.6V / 25.2V Over discharge protection: 10.7V / 21.4V Over discharge recovery: 12.6V / 25.2V Dual USB output: 5V / 2A (Charge mobile phones iPads etc.) Working temperature: -35℃-60℃ 12V is suitable for 18V solar panels 24V is suitable for 36V solar panels Corresponding to 12.0 volt lead-acid battery ---The float voltage is set to 13.6 ---The recovery discharge voltage is set to 12.6 ---The discharge cut-off voltage is set to 10.7 Corresponding to 12.8 volt lithium iron phosphate battery ---The float voltage is set to 14.6 ---The recovery discharge voltage is set to 13.6 ---The discharge cut-off voltage is set to 11.0 Corresponding to 11.1 Volt Lithium Battery Correspondence ---The float voltage is set to 12.6 ---The recovery discharge voltage is set to. 11.6 ---The discharge cut-off voltage is set to 9.6 Description of photovoltaic system power. 10A/20A/30A/40A/50A/60A/70A/80A/90/100A battery 12V photovoltaic system: the power is 100-1000W respectively 10A/20A/30A/40A/50A/60A/70A/80A/90/100A battery 24V photovoltaic system: the power is 200-2000W respectively Package includes: 1x Solar Charge Controller 1X User Manual