Electrical Specifications 
*STC: Irradiance 1000W/m2, AM1.5 spectrum, module temperature 25℃
Model type GP-320M-72 GP-310M-72 GP-300M-72
Peak power (Pmax) 320W 310W 300W
Cell Efficiency 19.16% 18.56% 18.00%
Maximum power voltage (Vmp) 37.7V 37.2V 37.0V
Maximum power current (Imp) 8.49A 8.33A 8.11A
Open circuit voltage (Voc) 45.6V 45.1V 45.0V
Short circuit current (Isc) 9.03A 8.95A 8.77A
Power Tolerance                    ±3%
Maximum system voltage          1000V
Series fuse rating (A)              12
Number of bypass diode              3/6
                                      
Temperature Coefficients              
Current Temperature Coefficient  α(Isc)  0.03%/℃
Voltage Temperature Coefficient  β(Voc) - 0.32%/℃
Power Temperature Coefficient   γ(Pmax) -0.42%/℃
Nominal Temperature of  Cells(NOTC) 46±2℃
Application Temperature Range -40~+85℃

Mechanical Characteristics

Dimensions:  1956 x 992 x 45mm
(77.01x39.06x1.77 inch)
Weight: 21.5 kg (47.73 lbs)
Solar Cells: 72 cells in series(6x 12)
Construction: High-transmission low-iron tempered
Glass, EVA, TPT/TPE
Frame: Anodized aluminum is mainly for improving corrosion resistance. Color: silver

Output

Cable LAPP(4 mm2)
Lengths 900mm(-)  and 900mm(+)
Connector MC Plug Type IV
                                                                                        

Module Warranty:

25-year limited warranty of 80% power output;
10-year limited warranty of 90% power output;
5-year limited warranty of materials and workmanship.

Why do you choose us?

1>many years experience.

2>Free design.

If you have your own design idea, our engineers will help you with their expertise freely

3>Strict Quality Control

for each order, strict inspections will be put in place for each procedure during their processing. The disqualified products will be rejected before shipping

4>Stable suppliers

We have cooperated with many accessory suppliers for many years, so we can get cheaper and high quality accessories and thus we can give you a reasonable price and high quality products.

5>Smooth Shipping

We have partnership with excellent shipping forwarders, therefore we can promise fast delivery and have the goods well protected.

6>Customers from all over the world

We have sufficient foreign trade experiences and our clients are located in many countries

7>Fast reply

We will respond your questions with 12 hours!