Check the listing for details. 12V 24V 10A - 30A PWM Solar Charge Controller Panel Battery Regulator Dual USB. Condition: New. Listed at 14.38 USD. Specification: Material: ABS + PC System voltage: 12V24V automatic adaptation Rated charging current (optional): 10A/20A/30A Maximum photovoltaic voltage: 23V for 12V battery; 46V for 24V battery Boost charging voltage: 14.4V Floating voltage: 13.7V (default value, adjustable) Discharge cut-off voltage: 10.7V (default value, adjustable) Discharge recovery voltage: 126V (default value, adjustable) Charging recovery voltage: 13V Light-controlled turn-on threshold Photovoltaic panel: 8V (light-controlled turn-on has a delay) USB output: 2 USB outputs, 5V/2.5A (maximum) Standby current: Function Feature: 1. Adopt industrial-grade main control chip. 2. Large-screen LCD display; display of charging and discharging current; query of accumulated power generation and discharge; temperature display; light control + delay control; adjustable charging and discharging parameters; with functions such as power-off memory. 3. Dual USB output, maximum current up to 2.5A, support for iPhone charging. 4. Complete 3-stage charging management 5. Built-in over-current, short-circuit protection, open-circuit protection, reverse connection protection, all of which are self-healing and do not damage the controller. 6. Anti-backflow circuit, ultra-low heat generation Specification: Material: ABS + PC System voltage: 12V24V automatic adaptation Rated charging current (optional): 10A/20A/30A Maximum photovoltaic voltage: 23V for 12V battery; 46V for 24V battery Boost charging voltage: 14.4V Floating voltage: 13.7V (default value, adjustable) Discharge cut-off voltage: 10.7V (default value, adjustable) Discharge recovery voltage: 126V (default value, adjustable) Charging recovery voltage: 13V Light-controlled turn-on threshold Photovoltaic panel: 8V (light-controlled turn-on has a delay) USB output: 2 USB outputs, 5V/2.5A (maximum) Standby current: