Solar energy products are a trend and good way to achieve zero home bills or commercial invest in the future. So choose a good solar panel is important.The key factors to consider when comparing solar panels are performance (they should produce the power that the rating leads you to expect), quality, durability and beneficial warranty terms. 

Poly Solar Panel 300W Characteristics
1) high reliability with guaranteed +/-3% output power tolerance
2) The modules can withstand high wind-pressure,snow loads and extreme temperatures
3) Bypass diodes to minimize power loss with shading
4) High and stable conversion efficiency to ensure the highest quality

A Grade Polycrystalline Silicon Solar Cell
1) Fomat:156±0.5mm, diagonal 200±1.0mm
2)  Average thickness: 195μm ±20μm
3) Front(-): 1.5mm bus bars(silver)
      Blue anti-refelecting coating(silicon nitride)
4) Backe(+): 2.5mm wide soldering pads(silver)
     Back surface field(aluminiem)

Quality and Warranty

For a period of twenty‐five (25)years commencing on the Warranty Start Date, loss of power output of the nominal power output measured at Standard Test Conditions (STC) for the Product(s) shall not exceed:
 
For Polycrystalline A grade solar cell, 3% in the first year, thereafter 0.66% per year, ending with 81% in the 25th year after the Warranty Start Date;
The Warranty Start Date shall be defined as the date of the Bill of Lading date
 
10Years Manufacturing Warranty
15Years Warranty 90% Power Output
25Years Warranty 85% Power Output

Product Information
 

Company Information

Foshan Ouyad Electronic Co.,Ltd  was founded in 1998.We are real professional manufacturer of  solar panels,such as mono solar panels,poly solar panels and semi flexible solar panels and so on,covering an area of more than 20,000sqms. In 2014,Ouyad company  are well known as Guangdong Province High Technology Corporation.
For right now,we have our own independent  workshop,supply complete solar power system,including solar panel,battery,controller,inverter,etc.Our products are authorized by CE test system and the ISO9001:2008 International quality system certification.