Cheap price Poly-crystalline Solar Panel 250W Factory from Boston
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We consistently carry out our spirit of ''Innovation bringing development, Highly-quality ensuring subsistence, Management promoting benefit, Credit attracting customers for Cheap price Poly-crystalline Solar Panel 250W Factory from Boston, With the aim of "compete with good quality and develop with creativity" and the service principle of "take customers' demand as orientation", we will earnestly provide qualified products and good service for domestic and international customers.
Poly-crystalline Solar Panel 250W
Technical parameter
Maximum Power(W) 250W
Optimum Power Voltage(Vmp) 30.25V
Optimum Operating Current(Imp) 8.26A
Open Circuit Voltage(Voc) 36.61V
Short Circuit Current(Isc) 8.89A
Mechanical Characteristics
Cell Type Polycrystalline 156x156mm (6 inch)
No of Cell 60 (6x10pcs)
Dimensions 1640x990x40mm
Weight 18.5KGS
Front Glass 3.2mm,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——Polycrystalline solar cell 156*156mm
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
Soldering a flex wire to a single solar cell to be used as a detector. Some tips and tricks to make it faster and easier while lowering the chance of cracking the cell. (This is not the same as building a solar panel.)
MATERIALS
- Soldering iron (less than 50 watts, clean)
- Fine solder is best (clean)
- Thin, flexible wire (clean)
- Cell
WARNINGS:
- Soldering can be dangerous. If you do not know soldering safety, learn it or don’t solder.
- Never solder live circuits of any type.
- Soldering house wiring, power wiring, etc. is outside the scope of this video. That should be left to professionals only.
- Electricity can cause damage, fires, burns and death. If you don’t know about electricity, learn before doing.
- These are demonstrated for hobby work, low voltage – low amperage applications. NOT for mains voltages or currents or similar.
- Never use lead type solders where it will come in contact with food or drink or where it will come in regular contact with people.
- Lead is toxic. Take care to ensure that the byproducts / waste are contained and disposed of properly. Never hold solder in your mouth. Have proper ventilation.
- This is for hobby soldering only. Industrial users have more stringent requirements for industrial or large scale soldering operations.
- This is not all inclusive. If you don’t know, get training before continuing.
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Soldering Closely Spaced Leads, Wires, Connections – Soldering Tip 2
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