Features 1Full 3-stage PWM charge management 2Short circuit protection open circuit protectionover-charging protection over-discharging protection 3Reverse polarity protection for battery solar panel and auto temperature compensation function 4Automatically manage the working of solar panel and battery in solar system 5Suitable for small solar energy system Specification Features: Full 3-stage PWM charge management. Short circuit protection open circuit protectionover-charging protection over-discharging protection. Reverse polarity protection for battery solar panel and auto temperature compensation function. Automatically manage the working of solar panel and battery in solar system. Suitable for small solar energy system. Specification:Condition: 100% Brand New Charge Mode: PWM Mode Current: 10A Material: Plastic Main Color: BlackWorking Temperature: -30~55Waterproof Grade: IP40Size:approx.5.2*6.8*2.3cm/2.05*2.68*0.91inWeight:approx.38g/1.34ozPackage List:1 * Solar Charge Controller1 * Manual Note: 1. Connects the battery first and then the solar panels finally connects the load don't reverse the positive and negative poles.