GOKIN BC Series-Gokin Solar Co., Ltd.

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670 W

Maximum power

24.8 %

Maximum efficiency

15 years

Product warranty

30 years

Power warranty

670 W

Maximum power
24.8 %

Maximum efficiency
15 years

Product warranty
30 years

Power warranty

Product Line

GK-3-72HGBD

Cell type: N-Type GBC

Maximum power: 665W

Conversion efficiency: 24.6%

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GK-1-60HG

Cell type: N-Type GBC

Maximum power: 530W

Conversion efficiency: 24.5%

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GK-5-54HG

Cell type: N-Type GBC

Maximum power: 485W

Conversion efficiency: 24.3%

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GK-1-78HGBD

Cell type: N-Type GBC

Maximum power: 685W

Conversion efficiency: 24.5%

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GK-5-54HGb

Cell type: N-Type GBC

Maximum power: 485W

Conversion efficiency: 24.3%

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Product advantages

Higher Efficiency

For the same area, the power output is 6%-10% higher than TOPCon.
Outstanding Anti-degradation

First-year Degradation≤1% Annual Degradation≤0.35%
Safer

Excellent Micro-crack Resistance & High Temperature Restriction.
Superior Temperature Coefficient

-0.26%/°C

Mechanical Parameters

Item

Specifications
Cell type

N-Type GBC
No. of cells

144（6×24）
Glass

3.2 mm tempered glass
Frame

Anodized aluminum alloy frame
Weight

28.1 kg±3%
Dimension

2382×1134×30mm

Item	Specifications
Cell type	N-Type GBC
No. of cells	144（6×24）
Glass	3.2 mm tempered glass
Frame	Anodized aluminum alloy frame
Weight	28.1 kg±3%
Dimension	2382×1134×30mm

Dimensional drawing

Electrical Characteristics (STC Test)

Component model

GK-3-72HG
-640M

GK-3-72HG
-645M

GK-3-72HG
-650M

GK-3-72HG
-655M

GK-3-72HG
-660M

GK-3-72HG
-665M

GK-3-72HG
-670M
Maximum Power
(Pmax/W)

640

645

650

655

660

665

670
Open Circuit Voltage
(Voc/V)

54.20

54.30

54.40

54.50

54.60

54.70

54.80
Short-circuit Current
(lsc/A)

44.90

45.00

45.10

45.20

45.30

45.40

45.50
Peak Power Voltage
(Vmp/V)

15.00

15.06

15.12

15.18

15.24

15.30

15.36
Peak Power Current
(Imp/A)

14.26

14.34

14.42

14.50

14.57

14.65

14.73
Module Efficiency
(%)

23.7

23.9

24.1

24.2

24.4

24.6

24.8

Component model	GK-3-72HG -640M	GK-3-72HG -645M	GK-3-72HG -650M	GK-3-72HG -655M	GK-3-72HG -660M	GK-3-72HG -665M	GK-3-72HG -670M
Maximum Power(Pmax/W)	640	645	650	655	660	665	670
Open Circuit Voltage(Voc/V)	54.20	54.30	54.40	54.50	54.60	54.70	54.80
Short-circuit Current(lsc/A)	44.90	45.00	45.10	45.20	45.30	45.40	45.50
Peak Power Voltage(Vmp/V)	15.00	15.06	15.12	15.18	15.24	15.30	15.36
Peak Power Current(Imp/A)	14.26	14.34	14.42	14.50	14.57	14.65	14.73
Module Efficiency(%)	23.7	23.9	24.1	24.2	24.4	24.6	24.8

Mechanical Loading

Front Side Maximum Static Loading

5400Pa
Rear Side Maximum Static Loading

2400Pa
Hailstone Test

25mm hailstone at 23m/s

Front Side Maximum Static Loading	5400Pa
Rear Side Maximum Static Loading	2400Pa
Hailstone Test	25mm hailstone at 23m/s

Temperature Ratings (STC Test)

Temperature coefficient of lsc

+0.05%/℃
Temperature coefficient of Voc

-0.22%/℃
Temperature coefficient of Pmax

-0.26%/℃

Temperature coefficient of lsc	+0.05%/℃
Temperature coefficient of Voc	-0.22%/℃
Temperature coefficient of Pmax	-0.26%/℃

Application Cases

Fishery-PV Complementary Power Generation Project In Zhuhai, Guangdong

Zhuhai, Guangdong

400MW

Project capacity

Ground-mounted PV Project in Yibin, Sichuan

Yibin, Sichuan

25MW

Project capacity

Aosen Group Commercial & Industrial Rooftop PV Project

Xinji, Hebei

39MW

Project capacity

Learn more