B Grade 250w poly solar panel with cheap price

Qty (Other,watt/watts) Unit Price (USD)
1000 0.45
1000 + 0.6
Trade Term: FOB
Payment Terms: T/T,L/C,WU
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Basic Info.
  • Application: Solar Thermal 
  • Type: Flat Panel 
  • Pipe Material: Glass 
  • Brand Name: Dongke 
  • 250w solar panel: B Grade 250w poly solar panel 
  • Material: Polycrystalline Silicon 
  • Size: 1950*990*40 
  • Number of Cells: 6*12 
  • Cell size: 156*156mm 
  • Max. Power: 250W 
  • Frame: Anodized Aluninium Alloy 
  • warranty: 25 years 
  • Front Glass: 3.2mm high transmissiontempered glass 
  • Tolerance: ±3% 
  • Model No.: DK-250 
  • Place of Origin: Zhejiang  
  • Min.Order: 1000 watt/watts
  • Means of Transport: Ocean
Supply Capacity
  • Production Capacity: 300000 watt/watts per Month
  • Packing:2pcs in one carton,then pack on the wooden pallet.
  • Delivery Date: within 15 days to 20days after the deposit

Product Description 

B Grade 250w poly solar panel with cheap price

 

 High quality materials

The ions injection technology are applied in the manufacturer process of high efficiency cells .

The imported high quality EVA and back sheet are of excellent performance on UV resistance and ageing resistance .

Toughened and coated glassed and electrophoretic frames selected from Chinese famous brand are sturdy and durable .

 Auto production and process control

 Strict Testing & Inspection For Cell & Module 

The whole PV industry Chain

Material

1.Solar cell-conversion efficiency of solar cell: 24%-17%

2.Front glass-3.2mm, high transmission, low iron, tempered glass

3.EVA-excellent anti-aging resistance 

4.TPT-hot seal made of flame resistance

5.Flame-reinfored anodixed aluminum flame

6.Junction box-Ip54 rated and Ip65 rated, high quality, with diode protection

Anti-reflective coating glass
• Nanometer technology
• Increase light transmission by up to 2% in normal irradiance
• Energy output increased up to 4% in the module efficiency
• Perfect coating uniformity
• Coating lifetime over 25 year
• Easy cleaning 

Maximum power (Wp) 

250wp

Maximum power voltage (V) 

31.18

Maximum power current (A) 

8.02

Open circuit voltage (V) 

37.44

Short circuit current (A)

9.02

Number of cells (Pcs) 

60

Size of module (mm)

1950*990*40

Brand Name of Solar Cells 

No

Maximum system voltage (V) 

1000

Temperature coefficients of Isc (%)

0.065+/-0.015%/°C

Temperature coefficients of Voc (%)

-(2.23+/-0.1)mv/ °C

Temperature coefficients of Pm (%)

-(0.5+-0.05)/ °C

Temperature coefficients of Im (%)

+0.1/ °C

Temperature coefficients of Vm (%)

-0.38/ °C

Temperature Range 

-40°C~+85°C

Tolerance Wattage (e.g. +/-5%) 

+/-3%

Surface Maximum Load Capacity

60m/s(200kg/sq.m)

Allowable Hail Load 

steel ball fall down from 1m height

Weight per piece (kg) 

18.5

Length of Cables (mm) 

900

Cell Efficiency (%) 

>17.9%

Module Efficiency (%) 

>15.27%

Output tolerance (%) 

+/-3%

Frame (Material, Corners, etc.)

Aluminum

Standard Test Conditions

 AM1.5  1000w/m 25°C

Warranty 

5 years product warranty

FF (%) 

76.48%

Packing

2PCS/ CTN

Unit Price 

0.5-0.6USD/WP

Payment

30% TT in advance , the balanced after the B/L copy .

 Application    

Products picture:

50w anti-reflective tempered solar panel glass50w anti-reflective tempered solar panel glass

Packaging & Shipping

Our Services   

 1.Reply your inquiry in 24 working hours.

 2.Customized design is avaliable ,OEM is welcome .

 3.Delivery the goods to our customer all over the world with speed and precision.

 4.Offer customer the products with good quality and competitive price.



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Ms. Judy
Tel: 86-571-58986600
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Hangzhou Dongke New Energy Technology Co.,Ltd
Room1304-C,No.1160 Gongwang street ,Fuyang Area, Hangzhou, Zhejiang, China (Mainland)
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