Features: brand new and high quality Data memory function: The chip has data recording and storage functions. The voltage and charging for time of each charge will be recorded. When the battery is connected the next for time it is charged, it will be automatically recognized. Backlight function: As long as you click any of the buttons, the screen will light up, which is convenient for operation at night or in places with insufficient light. Increase the for DC output port: add 12V/24V for DC output port at the bottom, the electronic equipment of the for DC output can be directly used, which is convenient and simple. 2.0A USB output: The 2.0A USB output port makes charging faster and solves the troubles of mobile phones or electronic devices and electricity. Wide range of applications: suitable for solar green lights, solar light billboards, solar insecticidal lights, solar power systems, marine solar power systems, solar power systems, etc. Specifications: Material: ABS Current: 10A/20A/30A Size: Approx. 133x70mm/5.23x2.75inch System Voltage: 12v/24V Rated Charging Current: 10A/20A/30A Rated Discharge Current: 10A/20A/30A Control Method: PWM Modulation Method Power Display: Yes Light Control, Delay: Yes Discharge Cut-off Voltage: 10.7V (Adjustable) for DC Output: 12 USB Output: 5V/2A Standby Current: