PWM Solar Charge Controller Dual DC Current Display Solar Panel Controller 12V/24V Solar Panel Battery Regulator With Dual USB PortFeature: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 management5. 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 generationSpecification:Material: ABS + PCSystem voltage: 12V24V automatic adaptationRated charging current (optional): 10A/20A/30AMaximum photovoltaic voltage: 23V for 12V battery; 46V for 24V batteryBoost charging voltage: 14.4VFloating 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: 13VLight-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: