Feature: - Build-in industrial micro controller. - Fully 3-stage PWM charge management. - Big LCD display, all adjustable parameter. - Dual mosfet reverse current protection, low heat production. - Dual USB output, the maximum current of 2.5A, to support Apple's mobile phone charging. - Build-in short-circuit protection, open-circuit protection, reverse protection, over-load protection. - Suitable for solar green light, solar light boxes advertising board, solar insecticidal lights, housing solar power generation system, marine solar power generation system, outdoor survival solar power generation system. Specification: Shell Material: Plastic. Back Board Material: Iron(10A-60A). Color: Black+Blue. Display: LCD Screen. Batt Voltage: 12V/24V auto. Charge Current: 10A, 20A, 30A, 40A, 50A, 60A. (pls choose which current you need). Discharge Current: 10A, 10A, 10A. Self-consumption: ＜10MA. Operating Temperature: -35~+60. Max Solar Input: 12V battery, the highest 23V. Float Charge: 13.7V(defaul, adjustable). Discharge Stop: 10.7V(defaul, adjustable). Discharge Reconnect: 12.6V(defaul, adjustable). Charge Reconnect: 13V. Voltage of Open Light: Solar Panel 8V(Light lights delay). Voltage of Close Light: Solar Panel 8V(Light off delay). USB Output: 2 way USB output, 5V/2.5A(MAX). Size: (L)X(W)X(H) 13.3x7x3.2cm. System Connection: 1. Connect the battery to the charge regulator-plus and minus. 2. Connect the photovoltaic module to the regulator-plus and minus. 3. Connect the consumer to the regulator-plus and minus. NOTE: The reverse order applies when deinstalling, an improper sequence order can damage the controller. Safety Instruction: 1. Make sure your battery has enough voltage for the controller to recognize the battery type before first installation. 2. The battery cable should be as short as possible to minimize loss. 3. The regulator is only suitable for lead acid batteries: OPEN,AGM,GEL, it is not suited for nickel metal hydride, lithium ions or other batteries.