Feature:<br> Using industrial-grade main control chip, real-time display of working temperature, charging current and discharge current.<br> Large-screen LCD display, charge and discharge current display, cumulative power generation and discharge power query, temperature display, light control + delay control, adjustable charge and discharge parameters, with power-off memory, etc.<br> Dual USB output, the maximum current is up to 2.5A, supporting Apple mobile phone charging.<br> Complete 3-stage charging management, it can effectively protect the battery and make the battery more durable.<br> Built-in over-current, short-circuit protection, open-circuit protection, and reverse connection protection, all of which are self-recovery, without damaging the controller.<br> Anti-backflow circuit, ultra-low heat generation, auto focus, high charging efficiency, non-stop detection.<br> <br> Specification:<br> Model: K1688<br> Colour: Black<br> Material:ABS<br> System voltage: 12V/24V automatic adaptation<br> Rated charging current: 10A<br> Rated discharge current: 10A<br> Maximum PV voltage: 50V<br> Maximum PV input power: 130W (12V) 260W (24V)<br> Boost charging voltage: 14.4V<br> Float voltage: 13.7V (default, adjustable)<br> Discharge cut-off voltage: 10.7V (default, adjustable)<br> Discharge recovery voltage: 12.6V (default, adjustable)<br> Charging recovery voltage: 13V<br> Threshold of light-controlled light-on: photovoltaic panel 8V (light-controlled light-on has a delay)<br> Threshold of light-controlled light-off: photovoltaic panel 8V (light-controlled light-off has a delay)<br> USB output: 2-way USB output, 5V/2.5A (maximum)<br> Standby current: &lt;10mA<br> Working temperature: -35+60<br> Size: 125*112*34mm/4.92*4.41*1.34inch<br> Packing size: 13*10.5*3.8cm/5.12*4.13*1.50inch<br> <br> Package include:<br> 1x Solar Panel Charge Controller<br> 1x User Manual<br> 1x Packing Box