2016 Good Quality Poly-crystalline Solar Panel 3W Wholesale to Albania
Short Description:
"Control the quality by the details, show the strength by quality". Our company has strived to establish a highly efficient and stable staff team and explored an effective quality control process for 2016 Good Quality Poly-crystalline Solar Panel 3W Wholesale to Albania, Sincerely hope we are growing up together with our customers all over the world.
Poly-crystalline Solar Panel 3W
Technical parameter
Maximum Power(W) 3W
Optimum Power Voltage(Vmp) 9V
Optimum Operating Current(Imp) 0.34A
Open Circuit Voltage(Voc) 10.8V
Short Circuit Current(Isc) 0.37A
Mechanical Characteristics
Cell Type Polycrystalline
No of Cell 18 (2x9pcs)
Dimensions 145x245x18mm
Weight 0.52KGS
Front Glass 3.2mm,High Transmission, Low Iron,Tempered Glass
Temperature and Coefficients
Operating Temperature(°C): -40°C ~ + 85°C
Maximum System Voltage: 600V(UL)/1000V(IEC) DC
Maximum Rated Current Series: 10A
Temperature Coefficients of Pmax: -0.435%
Temperature Coefficients of Voc: -0.35%
Temperature Coefficients of Isc: 0.043%
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
Since I set up the new solar panels in front of the tiny house they only worked on single day. There was a problem with one of the connectors and with them leaning up against the house I just had no room to work with.
So I moved them away from the tiny house and leaned them up against pallets.
Then I used a volt meter to see if I could find the bad solar panel connectors. The problem is intermittent so it was hard to find. Sometimes I got power and sometimes I did not.
The other problem was that with the meter I could read a voltage on every single panel but once they were connected together I did not get a voltage out of the set.
So it meant that one or more of the connectors were actually damaged.
It was a process of trial and error to finally find the bad solar panel. Actually what I did was connect the solar panels in pairs and check the voltage. When I got good output two times in a row with a pair then I figured this set was good.
I finally had a pair that did not work together so I tried one after another with the third panel until I found the bad panel.
I removed the bad solar panel and swapped it out for another panel.
This time I got 90 volts output. This is good and correct. Success.
I wired them up to the tiny house solar charge controller and I had an instant increase in total solar power output.
Now I have 1,200 watts of solar power connected to my tiny house on wheels.
Follow my daily progress on the path to self sufficiency on my off grid solar homestead.
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