NUUKO 610W-640W HJT Bifacial Double-Glass Solar Module

NUUKO 610W-640W HJT Bifacial Double-Glass Solar Module integrates advanced HJT technology with a bifacial double-glass design to deliver high power output, excellent efficiency, and reliable long-term performance. It captures more solar energy from both sides, ensuring higher energy yield and stable generation under diverse environmental conditions. Ideal for utility-scale and commercial & industrial solar projects, it helps maximize system efficiency and project returns.

Brand:
NUUKO
Item NO.:
NKM610-640H-120BDG12

Product Advantages

Core Advantage

Advanced HJT Technology

High-efficiency HJT cells deliver excellent power generation performance, lower temperature coefficient, and enhanced energy yield.

Superior Bifacial Energy Gain

Bifacial design captures sunlight from both sides, increasing overall power output in various installation environments.

Robust Double-Glass Design

Double-glass structure provides excellent durability and protection against moisture, UV radiation, and harsh weather conditions.

Outstanding Low-Light Performance

HJT technology ensures stable energy production under low-light conditions, improving all-day power generation.

Long-Term Reliability

Excellent PID resistance and strong environmental adaptability ensure reliable operation throughout the module lifecycle.

Product Specifications

Mechanical Specifications
Electrical Specifications
Maximum Ratings
Temperature Characteristics

Cell Type	HJT Monocrystalline
Cell Arrangement	120 (2*60)
Weight	34.9kg
Module Dimensions	2172130333mm
Cable Length	4.0mm², ±300mm or Customized length
Front Glass	2.0mm AR Coating Semi-tempered Glass
Back Glass	2.0mm Glazed Semi-tempered Glass
No.of Bypass Diodes	3/6
Packing Configuration	33pcs/carton, 594pcs/40hq
Frame	Anodized Aluminium Alloy
Junction Box	IP68

Module Type	NKM610H-120BDG12	NKM615H-120BDG12	NKM620H-120BDG12	NKM625H-120BDG12	NKM630H-120BDG12	NKM635H-120BDG12	NKM640H-120BDG12
Rated output (Pmp/Wp)	610	615	620	625	630	635	640
Maximum Power Voltage(Vmpp/V)	37.58	37.82	38.06	38.30	38.54	38.78	39.01
Maximum Power Current(Impp/A)	16.10	16.13	16.16	16.19	16.22	16.25	16.28
Open Circuit Voltage(Voc/V)	44.60	44.77	44.95	45.13	45.30	45.48	45.65
Short Circuit Current(Isc/A)	17.10	17.13	17.16	17.19	17.22	17.25	17.28
Module efficiency(%)	21.6%	21.7%	21.9%	22.1%	22.3%	22.4%	22.6%
Power Tolerance (W)	0~+5	0~+5	0~+5	0~+5	0~+5	0~+5	0~+5

*STC (Standard Test Condition): Irradiance 1000W/m2 , Cell Temperature 25 C, Air Mass 1.5

Electrical Characteristics with Different Rear Side Power Gain (Reference to 620 W Front)

Pmax/W	651	682	713	744	775
Vmpp/V	38.06	38.06	38.06	38.06	38.06
Impp/A	16.97	17.78	18.58	19.39	20.20
Voc/V	44.95	44.95	44.95	44.95	44.95
Isc/A	18.02	18.88	19.73	20.59	21.45
Power Gains	5%	10%	15%	20%	25%

Maximum System Voltage	1000V/1500V DC（IEC）
Operating Temperature	-40°C ~ +85°C
Maximun Series Fuse	30A
Static Loading	Snow Loading: 5400Pa/ Wind Loading: 2400Pa
Protection Class	II
Fire Type	Class C (IEC)
Bifacial	85±5%

NMOT Temperature	44℃±2℃
Temprature Coefficient (Pmax)	-0.24%/℃
Temprature Coefficient (Voc)	-0.22%/℃
Temprature Coefficient (Isc)	0.04%/℃

Product Certification

NUUKO's products undergo strict quality inspections and comply with international standards. Certified by TÜV, DEKRA, UL, CE, IEC, CB, and IECEE, they also hold multiple patents and software copyrights.

Application Scenarios

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