36Cells and connected in series 19% poly solar panels with Aluminum frame

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36Cells and connected in series 19% poly solar panels with Aluminum frame

Country/Region china
City & Province ningbo zhejiang

Product Details


Kelan Solar--- your reliable supplier of solar panels in China. 


CE, ISO, LVD,EMS,ROHS certificated 100% output A grade 50W poly solar panel 




1, High efficiency (18%-20%) poly silicon cells ( high qulity) for long term output stability.

2, Strictly quality control ensure the stablity and reliability of each piece of the solar panels from Kelan.

3, High transmittance low iron ermpered glass with enhanced stiffness and impact resistance.

4, Both poly and mono crystalline for options. 

5, Outstanding electrical performance under high temperature and low irradiance. 

6, Excellent performance in harsh weather. 


Description of every parts:
1. Junction Box in proof-water with TUV Certificate

2. Bypass Diode Rated 45V&15A

3. Solar Cable & Connector: 4m² MC 4connector with TUV Certificate

4. Toughed Glass: The glass is super white cloth grain of toughened glass , the thickness of 3.2mm , the solar cell spectral response range of wavelengths (320-1100 nm), light transmittance over 91% , Ultraviolet light radiation , light transmittance is not falling.Toughened glass is made of components can withstand 25 mm in diameter of hockey hit at a speed of 23 m/s.

5. EVA: 0.5 mm thickness with high quality EVA film as sealant of solar cell and and the connection between the glass, TPT agent. With high light transmittance and anti-aging ability. Solar cell encapsulation of EVA film after curing performance requirements:
Light transmittance is greater than 91% ; Crosslinking degree is during from 70 to 90% ; Peel strength (N/cm), glass/film is more than 30 ; TPT/film is more than 15 ; Temperature resistance is from - 40° C to 85° C.

6. TPT BackSheet: the back of the solar panel, ageing resistance , corrosion resistance , resistance to ultraviolet radiation, airtight, etc. Basic requirements.

7. Frame: aluminum alloy frame with high intensit , mechanical shock resistance ability.Strong, lightweight aluminum frame design with reinforced sealing and load hold to prevent freezing and warping, and stand against high wind.



Solar Panel ParametersKL-50W-P
Optimized working voltage21.6V
Optimized working current3.09A
Open circuit voltage18V
Short circuit current2.78A
Nominal power50W
Operating temperature-40℃ to+85℃
Maximum system voltage1000VDC(IEC)/600VDC(UL)
Series fuse rated value20A
Power tolerance±3%
Cell specification156×52mm
Arrangement quantity36(3×12)
Solar panel dimension700×540×30mm
Glass specification3.2mm(0.13inch) tempered glass
FrameAnodised aluminium alloy
Rated operating temperature45±2℃
Pmax temperature parameter-(0.48±0.05)%/℃
Voc temperature coefficient:-(0.34±0.1)%/℃
Isc temperature coefficient0.04±0.01%/℃
Notic:Data under standard testing condition (STC):1000W/㎡,AM1.5,25℃.


Module Warranty:
25-year limited warranty of 80% power output;
10-year limited warranty of 90% power output;
5-year limited warranty of materials and workmanship.


-Vertically integrated production line from silicon ingot- silicon wafers- solar cell- solar modules assembly with highly automatic production line;
-90% equipment is imported from Europe, USA, Japan;
-Production line are certified by America company DNV KEMA;
-Strategic cooperation with TUV, randomly checking for production line, making sure the production line is under the best situation;
-More than 4 quality control points in each production process;
-All the staff went through strict training and testing before start work;
-All the equipment do calibration every 24 hours;
-R &D center focus on high efficiency solar cells and stable,higher output solar panels;
-Strictly raw material checking for raw silicon, glass, backsheet, EVA, Junction Box, etc.
Product field:

1. Gird-connected power generation system

2. Off-grid power generation system

3. Building-integrated power generation facilities


We have a wild range of successful project all over the world.

We have advanced ,mature and stable supply production line, support your request on solar market.




1pcs per box( according to customer's requirements) 








Payment Term







30% T/T in advance, paid the balance before shipment



30% T/T in advance, paid the balance against copy of B/L

L/CL/C amount above 50,000 usd, we can accept L/C at sight
West Union


Amount lower than 5000usd

West Union
Delivery Time7~10days after receiving payment for one container

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