Solar PV Charge Controller 30A/20A/10A 12V 24V with LCD display and double USB PWM Solar PV Regulators Battery Chargers 30Amps This controller is a intelligent, multi-purpose solar charge and discharge controller. Fixed LCD display with a very friendly interface is used in this product; various control parameters can be flexibly set, fully meet your various application requirements. This is NEW Solar Controller ,It can fully meet your home Photovoltaic system(including home lighting system)requirements.It can recongize 12V and 24V Lead acid ,Gel battery automatically. There are optional 10A 20A 30A model 10A: if your battery is 12V ,the max solar panel input is 25V 120W if your battery is 24V ,the max solar panel input is 50V 240W 20A: if your battery is 12V, the max solar panel input is 25V 240W if your battery is 24V, the max solar panel input is 50V 480W 30A if your battery is 12V ,the max solar panel input is 25V 360W if your battery is 24V ,the max solar panel input is 50V 720W Features: 1.Build-in industrial micro controller. 2.Big LCD display,all adjustable parameter. 3.Fully 4-stage PWM charge management. 4.Build-in short-circuit protection,open-circuit protection,reverse protection,over-load protection. 5.Dual mosfet Reverse current protection ,low heat production.