Factory price 250W poly solar panel from China manufacturer
Poly Solar Panel 250W 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 25 th 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

Electrical Characteristics
ITEM NO.	S/P-250	S/P-260	S/M-270
Maximum Power at ST(Pmax)W	250Wp	260Wp	270Wp
Maximum Power Voltage(Vmp)V	30.8V	31.0V	31.4V
Maximum Power Current(Imp)A	8.12A	8.39A	8.60A
Open Circuit Voltage(Voc)V	37.6V	37.8V	38.3V
Short Circuit Current(Isc)A	8.94A	9.08A	9.31A
Cell Efficiency(%)	17.50%	18.04%	18.83%
Module Efficiency(%)	15.37%	15.98%	16.59%
Size of Module (mm)	1640*992*40
Number of Cell(PCS)	6*10
Solar Cell	156*156
Weight(KG)	18.5Kg
Power Tolerance	0~+3%

 

Components & Mechanical Data
Front Glass Thickness (mm)	High Transparency Tempered Glass 3.2mm
Junction Box Type	Pass the TUV Certificate PPO(Black/IP65)
Output Cables	4mm2/0.9m
Frame (Material Corners, etc.)	Aluminum-alloy
Encapsulation Material	EVA(0.50±0.03 mm thickness)
Back Foil	White TPT(0.50±0.03 mm thickness)
Fixing Adhesive	Silicone Sealant ( White)
Temperature Range (°C)	-40°C to +90°C
Max Load Capacity(Kpa)	2.4wind load/5.4 snow load

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.