12 Years Manufacturer Poly-crystalline Solar Panel 40W Wholesale to Qatar
Short Description:
"Quality first, Honesty as base, Sincere service and mutual profit" is our idea, in order to develop continuously and pursue the excellence for 12 Years Manufacturer Poly-crystalline Solar Panel 40W Wholesale to Qatar, Our tenet is clear all the time: to deliver high quality product at competitive price to customers around the world. We welcome potential buyers to contact us for OEM and ODM orders
Poly-crystalline Solar Panel 40W
Technical parameter
Maximum Power(W) 40W
Optimum Power Voltage(Vmp) 17.35V
Optimum Operating Current(Imp) 2.31A
Open Circuit Voltage(Voc) 21.16V
Short Circuit Current(Isc) 2.53A
Mechanical Characteristics
Cell Type Polycrystalline 156 x 52mm
No of Cell 36 (4x9pcs)
Dimensions 670x420x30mm
Weight 4.0Kg
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——Polycrystalline 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
I show the initial results of my lead crystal battery testing.
Latest results here: http://mjlorton.com/forum/index.php?topic=84.msg514#msg514
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Donations and contributions:- http://www.mjlorton.com
My techie channel MJLorton – Solar Power and Electronic Measurement Equipment – http://www.youtube.com/MJLorton
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My other channel VBlogMag – For almost any topic under the sun! – http://www.youtube.com/VBlogMag
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This is a test to see if a lead crystal battery lives up to the claims that it can be cycled to full depth of charge (and beyond) without too much harm. I’ll log the results and compare to a standard lead acid battery.
Thanks to ExSolar for the Lead Crystal battery used in this test: www.exsolar.co.za
More info on Lead Crystal Batteries:
http://www.deltecpower.co.za/sites/deltecpower.co.za/files/Deltec%20Lead%20Crystal%20-%20Brochure.pdf
Items used or mentioned in this video:
* Metrix MX3282 Graphical multimeter with data logging, dual channels for power measurement.
* 220 volt mains relay – double pole, double throw.
* 12 volt car / auto light.
* Battery Tender / Power Tender Plus 12V Compact Charger
* How does a deep cycle work?
* How does a car battery work?
* What is a lithium iron phosphate (LiFePO4) battery? (also called LFP battery)
* http://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery
* Charging of solar power battery bank.
* Trojan golf cart batteries.
* How to solar power you home / house?
* Power Kingdom PS18-12 – Lead Acid
* Betta Batteries 6-CNFJ-22 – Lead Crystal
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