ZOOKOTO 20A Solar Charge Controller 12V24V PWM Auto Paremeter Adjustable Solar Panel Battery Intelligent Regulator with LCD Display Dual USB Load Timer Setting ONOff Hours

Features: Voltage: DC 12V/24V Rated Charge Current:20A Over charge Protection: 14.4V/28.8V Over charge Floating charge: 13.7V/27.4V Charge recover voltage: 12.6V/25.2V Over discharge Protection: 10.7V/21.4V Over discharge Recover: 12.6V/25.2V USB output: 5V/3A Operating temperature: -35?-60? Size:133 * 70 * 25mm / 51 * 27 * 1 in Max input Power 120W (12v system), 240W (24v system) Max Solar input: < 50V (12V system Optimal charging voltage: 14V----20V) Build-in short-circuit protection, open-circuit,protection from lightning strike Suitable for small home, industrial, commercial solar energy system etc Easy to set up and operate Prolong the battery life cycle Note: 1.Please connect battery terminals to the charge controller before connecting the solar panel to the charge controller. Never connect solar panel to the controller UNTIL the battery is connected 2.All electronic components generate heat when they are running,it is better to shelter them for better heat dissipation, avoid direct sunlight exposure or damp place 3.Make sure your battery has enough voltage for the controller to recognize the battery before first installation 4.the regulator is only suitable for lead acid batteries:OPEN, AGM, GEL, Lithium not for nickel hydride, , ions, or other batteries 5.When connected to the battery after USB Output+5VDC Package List: 1 * 20A Solar Charge Controller 1 * User's Manual