8 Years Factory Poly-crystalline Solar Panel 250W for Vietnam Factories
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We always continually provide you with the most conscientious customer service, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for 8 Years Factory Poly-crystalline Solar Panel 250W for Vietnam Factories, we have built a reliable reputation among many customers. Quality&customer first are always our constant pursuit. We spare no efforts to make better products. Look forward to long-term cooperation and mutual benefits!
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
In this third video I will answer a common question I get about how to split the power from your solar panel system into multiple loads. You can build this load center box for about $25 at your hardware store. This also doubles as a combiner box, too.
quick comparison between Two Harbor Freight “45 watt” 3 panel sets and a “100 watt” Monocrystalline panel from Renogy. the Renogy can be purchased new for $150-$180 dollars ($1.50 to $1.80 a watt!). HFT panels are about $4.00 a watt. Renogy panel has 18% conversion efficiency. HFT panels are 6%. i love harbor freight solar panels but at this point the way to go is with a panel like the one that Renogy sells. can be bought on Amazon for $179.99 or on Ebay for $150.00 (new). at that price you could get 10 of them (1KW system) for only $1500. included in the video is basic info. on how to figure out how many batteries to use for any given system. basic rule is to use one deep cycle battery for every 2 to 6 amps your system produces. conclusion: since $150 to $180 is the average price for the 45 watt set from harbor freight (and you can now get a high power 100 watt Monocrystalline panel for the same price; i have to recommend buying the Monocrystalline panels if you can. it had free shipping too
