12V 24V Auto Solar Charge Controller PWM Solar Power Controller Dual USB LCD Display 10A Item Type: PWM Solar Power Controller Material: ABS Weight: Approx. 202g/7.13oz Size: 12.5x10x3cm/4.92x3.94x1.18in Model: K1688 System Voltage: 12V 24V automatic adaptation Maximum Photovoltaic Voltage: 23V(12V), 46V (24V) Lifting Charge Voltage: 14.4V (12V), 28.8V (24V) Float Charging Voltage: 13.7V (default, adjustable) (12V), 27.4V (default, adjustable) (24V) Discharge Cut Off Voltage: 10.7V (default, adjustable) (12V), 21.4V (default, adjustable) (24V) Discharge Recovery Voltage: 12.6V (default, adjustable) (12V), 25.2V (default, adjustable) (24V) Charging Recovery Voltage: 13V (12V), 26V (24V) Light Control Light On Threshold: 8V for photovoltaic panel (with delay) (12V), 16V for photovoltaic panel (with delay) (24V) Light Control Light Off Threshold: 8V for photovoltaic panel (with delay) (12V), 16V for photovoltaic panel (with delay) (24V) USB Output: Dual USB output, 5V 2.5A (maximum) Standby Current:<10mA Working Temperature: -35-+60℃ Purpose: Solar Energy Control