The solar charge controller is the most important part of the solar system. It is too intelligent and automatically to control the charge, discharge and load of the system. The performance of the controller can influence the stability of the system, especially the lifetime of Battery.

 

QUEENSWING 20a Solar Charge Controller 12v/24v with dual usb and LCD dislay (QWP-1420USBB)

This product is a new-generation solar charge and dis-charge controller for lead-acid battery. The product includes but is not limited to the following functions and properties:

LCD displayer

Excellent heat balance design and natural air cooling;

4-stage charge period management(EQU, Bulk, ABS, Float)

Temperature compensation function. The controller can automatically adjust the charge parameters of battery by environment temperature to lengthen the service life of battery.

Sophisticated electronic protection production, including overcurrent protection, load short-circuit protection and low-voltage protection.

Comprehensive and reliable load control mode can identify the day and night.

Well-designed charge loop can effectively improve the efficiency of charge and discharge, and reduce the heat consumption in charge and discharge.

Statistics of charge volume of battery.

 

Technical Parameter:

System voltage:     12V/24V
Max. voltage of PV:     40V
Max. charge current:    20A
Max. discharge current:     20A
Max. output power:     240W/480W
Charge way:     3-stage PWM charge
Compatible battery:    Lead-acid cell
USB charge port:    5V/1A
Temperature compensation:     have
Dimension:     150*85*35mm/230g  
Package included:
1* QWP-1420USBB
1* English user manual
1* standard packing box
 
FAQ
1. Q: Are you a factory or trading company?
A: We just want to tell you we can offer you good prices, professional service, professional english communication, professional after-sales service. And we are a factory.

2. Q: What certificate do you have?
A: We have CE,ROHS certificate.

3.Q:What kind of payment do you accept?
A:We accept T/T,Escrow,Western Union for samples' order,only T/T for big orders.

4.Q:Do you have any MOQ?
A:we don't have MOQ for mid-brand packing,if need your design it has 300pcs to 1000pcs.

5. Q: How does your factory do regarding quality control?
A: We have a special QC department in charge of products' quality.

6. Q: How long is the warranty period?
A: All of our products have one year warranty.

7. Q: What's the main market of your company?
A: We have customers all over the world.

8. Q: How long will the products'delivery?
A: for samples'order will 3-10days,big orders are from 30-45days.

Guangzhou Queenswing Solar Energy Co. Ltd. Is a professional manufacturer and exporter of solar products including power inverter, solar charge controller, solar panel and solar battery in China. To provide high-quality product and considerate service is always our basic policy. We believe high quality creates business and progress is from improvement.

Main products:
Pure sine wave power inverter
Modified sine wave power inverter
UPS power inverter with charger
Car power inverter
Solar charge controller
Solar panel
Solar battery

Our power inverter and solar products are exported to most global coutries and get good reputation because of our favorable quality and stable performance.

7. Payment Terms:
T/T, Western Union, Money Gram
Production arranged after receipt of payment.

Lead Time:
Sample order will be delivered within 7 working days.
Order quantity below 100PCS, delivery time is 7-15 working days.
Container order will be delivered within 15-30 working days.

Shipment:
Courier: FedEx, DHL, TNT, UPS, Aramex, EMS ect.
Forwarder: By sea / air or Customer designated

8. Contact us:
86-020-38260096