Product detail:
1. PWM Solar Charger Controller 10a Solar Panel Battery Intelligent Regulator with USB Port Display 
2. Rated Discharge Current: 10A/20A/30A available; USB Output Voltage: 5V; Battery Voltage: 12V/24V auto can be choosed. Battery type: Lead acid battery, Lithium iron phosphate battery, Lithium battery. Adjustable power rate with dual USB ports.
3. Mutiple Electric Protection: Over-current and short-circuit protection, inverse connection protection, low voltage and overcharge protection, over load and over charge protection, Good Heat 
4. Dissipation: Stable aluminum plate, dual reverse current protection, low heat production(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.
5. Easy to Use: comes with a LCD display that can clearly indicate the status and data, it can be conveniently switched.modes and parameter confiquration.
6. Suitable for Off grid Solar Energy System with solar panels. Use in home,industrial. Commercial, camping RV etc.