Professional Design Poly-crystalline Solar Panel 50W Factory for Kenya

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Poly-crystalline Solar Panel 50W

Technical parameter

Maximum Power(W)                         50W

Optimum Power Voltage(Vmp)        18.43V

Optimum Operating Current(Imp)    2.71A

Open Circuit Voltage(Voc)               22.48V

Short Circuit Current(Isc)                 2.98A

Mechanical Characteristics

Cell Type Poly-crystalline                  156 x 52mm

No of Cell                             36 (4x9pcs)

Dimensions                          678x542x25mm

Weight                                 4.2Kg

Front Glass                          3.5mm,High Transmission, Low Iron,Tempered Glass

Junction box                                       IP65 Rated

Output Cable                                     TUV 1×4.0mm2/UL12AWG,Length:900mm

Temperature and Coefficients

Operating Temperature(°C):                -40°C ~ + 85°C

Maximum System Voltage:                  600V(UL)/1000V(IEC) DC

Maximum Rated Current Series:         15A

Temperature Coefficients of Pmax:     -0.47%

Temperature Coefficients of Voc:        -0.389%

Temperature Coefficients of Isc:           0.057%

Nominal Operationg Cell Temperature (NOCT): 47+/-2°C

 Materials of solar panel

1).Solar Cell——Poly-crystalline solar cell 156*52mm

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

3).EVA——-excellent anti-aging EVA

4).TPT——-TPT hot seal made of flame resistance

5).Frame——anodized aluminum profile

6).Junction Box——-IP65 rated, high quality, with diode protection

Superiority: high quality anodized aluminum frame, high efficiency long life, easy installation, strong wind resistance, strong hail resistance.

Features

1. High cell efficiency with quality silicon materials for long term output stability

2. Strictly quality control ensure the stability and reliability, totally 23 QC procedures

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

4. Both Poly-crystalline and Mono-crystalline

5. Excellent performance in harsh weather

6. Outstanding electrical performance under high temperature and low irradiance 

Quality assurance testing

Thermal cycling test

Thermal shock test

Thermal/Freezing and high humidity cycling test

Electrical isolation test 

Hail impact test

Mechanical, wind and twist loading test

Salt mist test

Light and water-exposure test

Moist carbon dioxide/sulphur dioxide

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  • This is the introduction to the poly vs mono testing under hot summer conditions in Cape Town, South Africa.
    I received the new polycrystalline solar panel today and have a quick look at it.
    I need to find a good way to measure and log the power output of both panels at the same time…as well as the PV temperatures.

    Other equipment used:

    Zoom H2 Handy recorder



    LERRI Solar is a professional manufacturer of high-efficiency mono-crystalline solar cells and modules. The company was founded in 2007 and has been fully-owned by Xi’an LONGi Silicon Materials Corp. (SH.601012) since December 2015. LONGi is the world’s largest manufacturer of mono-crystalline silicon wafers, with total assets of over $33billion. By the end of 2016, Longi will have a capacity of 7.5GW in both ingots and wafers, while LERRI Solar will possess 5.5GW of cells and 5GW of modules, incorporating 1GW of overseas capacity.

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