50% OFF Price For Poly-crystalline Solar Panel 40W to Milan Factory
Short Description:
Our target is to consolidate and improve the quality and service of existing products, meanwhile constantly develop new products to meet different customers' demands for 50% OFF Price For Poly-crystalline Solar Panel 40W to Milan Factory, We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!
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 get about 100% better eficiency compared to the original COB led bulb.
Modifying these cheaply built light with quality Cree`s make them really reliable, eficient and cheap!
material list:
DRIVER: MR16 3x1w/3x3w led driver(deppending on your current preference), I used the 3x1w one. example eBay item number: 371124423509
LED: 9v Cree CXA1304 (color temp is your choice, make sure to get the 9v version) example: eBay item number: 321634801617
Try it out yourself!
DISCLAIMER: I am not responsible for any kind of harm or damage occured to anyone when re-creating this or any video! Beware.
PS: to hold the driver in the base I just applied some hot-glue(black in this case)
off grid inexpensive cabin, taping and mudding.
