Features： 1、Adopted industrial master control chip and this 60A controller is compatible with 12V and 24V systems. 2、With large LCD screen charging and discharge current display, cumulative power generation and discharge power query, temperature display, light and delay control, with power off memory and other functions. 3、Dual USB output, maximum current up to 2.5A and has complete 3 phase PWM charging management. 4、Built-in current, short circuit protection, open circuit protection, reverse protection, all are self-recovery, no damage to the controller. 5、Anti-backflow circuit and ultra-low calorific value ensure the long service life. Specification： Condition: 100% Brand New Item Type: Controller Material: Plastic Model: W88-F System Voltage: 12V/24V Automatic Adaptation Rated Charging Current: 60A Rated Discharge Current: 30A Maiximum Photovoltaic Voltage: when the battery is 12V, the highest is 23V; Maximum 46V at 24V battery Direct Charge Voltage: 14.4V Floating Charging Voltage: 13.7V (default, adjustable) Discharge Cut-off Voltage: 10.7V (default, adjustable) Discharge Recovery Voltage: 12.6V Charging Recovery Voltage: 13V Threshold of Light-controlled Light Opening: PV Panel 8V (light-controlled light opening has delay) Threshold of Light-controlled Light Off: PV Panel 8V (light-controlled light opening has delay) USB Output: 2-way USB output 5V/ 2.5A (maximum) Standby Current: <10mA Charging Mode: PWM pulse modulation Operating Temperature: -35- +60℃ Size: Approx.18.2 x 9.2 x 4.4cm / 7.2 x 3.6 x 1.7in Weight: Approx. 340g / 12oz Package List： 1 x Controller 1 x Instruction