Wholesale Price China Sun Solar Panels - Poly Black 310-340W – Apex Solar

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Wholesale Price China Sun Solar Panels - Poly Black 310-340W – Apex Solar Detail:


72cells polycrystalline solar panel uses high-efficiency perc solar cells, which can provide the most cost-effective solutions for off-grid / on-grid systems with 310 ~ 340W power.It can be widely used in photovoltaic rooftop solar off-grid systems for commercial/industrial buildings, residential photovoltaic rooftop solar off-grid systems, residential solar photovoltaic rooftop off-grid systems, any commercial/industrial ground installation off-grid systems, and other off-grid solar photovoltaic industrial and commercial applications.

Electrical Characteristics (STC)
Module  Type HR310P-24 HR315P-24 HR320P-24 HR325P-24
Maximun Power-Pmax(W) 310 315 320 325
Open Circuit Voltage-Voc(V) 45.3 45.4 45.7 46.1
Short Circuit Current-Isc(A) 8.86 9.15 9.24 9.34
Voltage at Pmax-Vmp(V) 36.9 37.2 37.5 37.6
Current at Pmax-Imp(A) 8.4 8.47 8.53 8.64
Module Efficiency-ηm(%) 16 16.2 16.5 16.7
Module  Type HR330P-24 HR335P-24 HR340P-24
Maximun Power-Pmax(W) 330 335 340
Open Circuit Voltage-Voc(V) 46.3 46.5 46.6
Short Circuit Current-Isc(A) 9.45 9.55 9.64
Voltage at Pmax-Vmp(V) 37.7 37.9 38.1
Current at Pmax-Imp(A) 8.75 8.86 8.92
Module Efficiency-ηm(%) 17 17.3 17.5
STC: Irradiance 1000W/㎡, Cell Temperature 25℃, Air Mass 1.5
Power Tolerance(W) (0, +4.99)
Maximun System Voltage(V) 1000
Maximun Series Fuse Rating(A) 20
Temperature Characteristics
Pmax Temperature Coefficient -0.40%/℃
Voc Temperature Coefficient -0.32%/℃
Isc Temperature Coefficient +0.05%/℃
Operating Temperature -40~+85℃
Nominal Operating Cell Temperature(NOCT) 45±2℃
Mechanical Specifications
External Dimensions 1956*992*40mm
Weight 22.5kg
Solar Cells Poly crystalline 156.75*156.75mm (72pcs)
Front Glass 3.2 mm tempered glass, low iron
Frame Anodized aluminum alloy
Junction Box IP67
Output Cables 4.0 m㎡, cable length: 1000mm
Connector MC4 Connector
Mechanical Load 5400 Pa
Packing List
Container 20′GP 40′GP
Pieces per Pallet 26 26
Pallets per Container 10 22
Pieces per Container 260 572

Full Advanced Automated Production


Solar cell Welding

Use automatic welding machine to connect solar cells in series
All the solar cells are made by top class brand, like TW Solar, Longi Solar

Automatic typesetting machine

After setting up the program according to the requirements of the process drawings, the typesetting machine will automatically typeset the battery string. High precision, high efficiency, low defect rate


Automatic welding

Automatic laying of EVA, backing, automatic cutting of excess backing material
100% automation of the entire production process

Visual Inspection

Through the turning machine, completely inspect the solar panel after lamination, and record the defects and feedback to the previous process


EL Testing

Use the mirror to inspect the appearance of the solar modules before lamination, and repair them if they are defective;

Flash Testing

Including temperature, power, voltage, current and other related tests, ensure 0~+5W Positive Power Tolerance


Our Project


Safe Packing



Q:Why should we buy from you not from other suppliers?

A:Our team have 10 years exprience in solar products,selling to 50 countries,we are

experienced in international business;we know suitable price and on time delivery are two key

points;we supply good service rather than other factories.

Q:Can we Visit factory?

A:Surely,our head office is in Wuxi City.One hour to Shanghai.It is very convinent.

Q:Are we Manufacturer?

A:Yes,we have own factory in wuxi city and Nanjing city.And we also have sub contract with

other factories.

Product detail pictures:

Wholesale Price China Sun Solar Panels - Poly Black 310-340W – Apex Solar detail pictures

Wholesale Price China Sun Solar Panels - Poly Black 310-340W – Apex Solar detail pictures

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We are also focusing on enhancing the things administration and QC program in order that we could keep fantastic advantage within the fiercely-competitive enterprise for Wholesale Price China Sun Solar Panels - Poly Black 310-340W – Apex Solar , The product will supply to all over the world, such as: Armenia, Guyana, Armenia, We look forward to hearing from you, whether you are a returning customer or a new one. We hope you will find what you are looking for here, if not, please contact us immediately. We pride ourselves on top notch customer service and response. Thank you for your business and support!
  • Adhering to the business principle of mutual benefits, we have a happy and successful transaction, we think we will be the best business partner.
    5 Stars By Christine from Canada - 2018.12.30 10:21
    The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
    5 Stars By Helen from Costa rica - 2018.05.15 10:52
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