solar controller PWM solar charge controller 2usb 12/24v Auto 30A with bule display1

High Quality 20A Solar Charge Controller 12V/24V Automatic Switch Mini Solar Charge Controller With LCD display ST6 20A Solar Charge Controller

 ST6 series PWM Controller:

The full name of PWM Controller is Pulse Width Modulation Solar Controller.With fashion design and dual USB port, with big white backlight screen,convenience for operate in dark condition. This controller is suitable for all types of solar panels, various types of batteries, Protection:over charge, over discharge, over load, Low voltage,short circuit, reverse connect. According to the actual charge and battery types, provides a quick and best charging voltage and current. It can display (LED lights) Real-time battery capacity. It is Safe, reliable and efficient.

Applications:
Solar system.

Specification:
12V/24V Automatic switch, with digital display. 
Max charge/discharge current:40A 
Full chagre cut: 13.7V/27.4 default 
low voltage cut: 10.5V/21V default 
low voltage restore: 12.6V/25.2V default 
static current: ≤45mA voltage drop: <270mv 
wire area max: 10mm² temperature compensation: -3mv/°C/cell 
USB Output Voltage:DC 5V(2000mA)
Protection:over charge,over discharge,over load,Low voltage,short circuit,reverse connect.
Controller size:199.89*28.45*54.50mm
Box size:222.50*136.50*63.30mm
NW:612g
Packing size:470*420*290mm 30pcs/carton