GBC Series | Back Contact Technology
Ultra-Efficient, Aesthetic, and Built to Perform
15 years
Product warranty
30 years
Power warranty
Power warranty
670W
Maximum power
24.8%
Maximum efficiency
Mechanical Loading
Front Side Maximum Static Loading
5400Pa
Rear Side Maximum Static Loading
2400Pa
Hailstone Test
25mm hailstone at 23m/s
The GBC Series from Deep Solar represents the next frontier in solar panel innovation. Powered by N-Type Back Contact (GBC) technology, these modules deliver superior energy yield, unmatched efficiency, and elegant all-black aesthetics, ideal for high-performance residential, commercial, and premium solar projects.
As the exclusive distributor of GoKin’s back contact modules in Malaysia, Deep Solar ensures consistent availability, technical support, and container-based delivery across the region.
Product Line
Cell type: N-Type GBC
Conversion efficiency: 24.6%
Maximum power: 665W
GK-3-72HGBD
Cell type: N-Type GBC
Conversion efficiency: 24.5%
Maximum power: 530W
GK-1-60HG
Cell type: N-Type GBC
Conversion efficiency: 24.3%
Maximum power: 485W
GK-5-54HG
Cell type: N-Type GBC
Conversion efficiency: 24.5%
Maximum power: 685W
GK-1-78HGBD
Cell type: N-Type GBC
Conversion efficiency: 24.3%
Maximum power: 485W
GK-5-54HGb
01
Higher Efficiency
For the same area, the power output is 6%-10% higher than TOPCon.
02
Outstanding Anti-Degradation
First-year Degradation ≤ 1%, Annual Degradation ≤ 0.35%
03
Safer
Excellent Micro-crack Resistance & High Temperature Restriction
04
Superior Temperature Coefficient
-0.26% / °C
Product Advantages
01
Project Sky Guardian
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
02
NextGen Fighter Jet Development
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
03
Space Debris Removal Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
04
Hypersonic Missile Defense Systems
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
05
Space Situational Awareness (SSA)
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
06
Autonomous Drone Swarm Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
Mechanical Parameters
Item
Cell type
No. of cells
Glass
Frame
Weight
Dimension
N-Type GBC
144 (6x24)
3.2 mm tempered glass
Anodized aluminium alloy frame
28.1 kg ±3%
2382×1134×30mm
Specifications
01
Project Sky Guardian
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
02
NextGen Fighter Jet Development
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
03
Space Debris Removal Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
04
Hypersonic Missile Defense Systems
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
05
Space Situational Awareness (SSA)
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
06
Autonomous Drone Swarm Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
Mechanical Parameters
Item
Cell type
No. of cells
Glass
Frame
Weight
Dimension
N-Type GBC
144 (6x24)
3.2 mm tempered glass
Anodized aluminium alloy frame
28.1 kg ±3%
2382×1134×30mm
Specifications
01
Project Sky Guardian
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
02
NextGen Fighter Jet Development
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
03
Space Debris Removal Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
04
Hypersonic Missile Defense Systems
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
05
Space Situational Awareness (SSA)
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
06
Autonomous Drone Swarm Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
Electrical Characteristics (STC Test)
Component model
Maximum Power
(Pmax/W)
Open Circuit Voltage
(Voc/V)
Short-circuit Current
(lsc/A)
Peak Power Voltage
(Vmp/V)
Module Efficiency
(%)
Peak Power Current
(Imp/A)
GK-3-72HG
-640M
640
54.20
44.90
15.00
14.26
23.7
GK-3-72HG
-645M
645
54.30
45.00
15.00
14.26
23.7
GK-3-72HG
-650M
650
54.40
45.10
15.00
14.26
23.7
GK-3-72HG
-655M
655
54.50
45.20
15.00
14.26
23.7
GK-3-72HG
-660M
660
54.60
45.30
15.00
14.26
23.7
GK-3-72HG
-665M
665
54.70
45.40
15.00
14.26
23.7
GK-3-72HG
-670M
670
54.80
45.50
15.36
14.73
24.8
Electrical Characteristics (STC Test)
Component model
Peak Power Voltage
(Vmp/V)
Open Circuit Voltage
(Voc/V)
Peak Power Current
(Imp/A)
Module Efficiency
(%)
Maximum Power
(Pmax/W)
Short-circuit Current
(lsc/A)
GK-3-72HG
-640M
640
54.20
44.90
15.00
14.26
23.7
GK-3-72HG
-645M
645
54.30
45.00
15.00
14.26
23.7
GK-3-72HG
-650M
650
54.40
45.10
15.00
14.26
23.7
GK-3-72HG
-655M
655
54.50
45.20
15.00
14.26
23.7
GK-3-72HG
-660M
660
54.60
45.30
15.00
14.26
23.7
GK-3-72HG
-665M
665
54.70
45.40
15.00
14.26
23.7
GK-3-72HG
-670M
670
54.80
45.50
15.36
14.73
24.8
01
Project Sky Guardian
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
02
NextGen Fighter Jet Development
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
03
Space Debris Removal Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
04
Hypersonic Missile Defense Systems
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
05
Space Situational Awareness (SSA)
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
06
Autonomous Drone Swarm Technology
Describe the service and how customers or clients can benefit from it. This is the place to add a short description with relevant details, like pricing, duration and how to book.
Electrical Characteristics (STC Test)
Component model
Maximum Power
(Pmax/W)
Open Circuit Voltage
(Voc/V)
Short-circuit Current
(lsc/A)
Peak Power Voltage
(Vmp/V)
Peak Power Current
(Imp/A)
Module Efficiency
(%)
GK-3-72HG
-640M
640
54.20
44.90
15.00
14.26
23.7
GK-3-72HG
-645M
645
54.30
45.00
15.00
14.26
23.7
GK-3-72HG
-650M
650
54.40
45.10
15.00
14.26
23.7
GK-3-72HG
-655M
655
54.50
45.20
15.00
14.26
23.7
GK-3-72HG
-660M
660
54.60
45.30
15.00
14.26
23.7
GK-3-72HG
-665M
665
54.70
45.40
15.00
14.26
23.7
GK-3-72HG
-670M
670
54.80
45.50
15.36
14.73
24.8
Temperature Ratings (STC Test)
Temperature coefficient of lsc
+0.05%/℃
Temperature coefficient of Voc
-0.22%/℃
Temperature coefficient of Pmax
-0.26%/℃