250w monocrystalline silicon solar roof panels , rooftop solar panel system, solar panel manufacturers in china

Features

High reliability with guaranteed *5% power output tolerance, ensuring return on investment

High conversion efficiency based on leading innovative photovoltaic technologies

Withstands high wind-pressure and snow load, and extreme temperature variations

Attractive appearance

Unique frame design, high mechanical strength, and easy Installation



Efficiency

Low voltage-temperature coefficient allows higher power output at high-temperature condition

High efficient, high reliable solar cells ensure our product output stability

Materials

Glass

1. High light transmission no less than *1.6%

2. Excellent mechanical loading performance (***0 PA)

EVA

1. High light transmission

2.High GEL and peeling strength guarantying strong encapsulation

3. Good ultraviolet aging resistance

4. Excellent oxidation resistance

5. TUV certified

Cell

1. Excellent efficiency and long term reliability

2. Good performance under high temperature and low irradiance conditions

3.**0% In-line Electroluminescence (EL) tested

4. Positive tolerance for each panel

5. Cell efficiency filling by 0.2 percentage

6. TUV certified

Back sheet

1. TPT based encapsulation and protection

2. Good aging resistance

3. Excellent adhesion and ultraviolet stability

4. TUV certified

Frame

1. Anodized/ Electrophoretic aluminium means durable protection from environment

2. Unique design profile ensuring strong mechanical loading performance

3. Silver/ Black color available

Junction box

1. Climate membrance: Excellent heat dissipation, prevent steam coming from outside and corrosion of diode by inside steam on the condition of big difference in temperature

2. IP*5 protection

3. TUV certified

Connector

1. MC4 compatible/ IP*5 or MC4 original/ IP*7

Quality and Safety

1).A-grade high efficient solar cells.

2).Management Certification: ISO ***1:***8 TUV CE  RoHS  ISO ****1:***4

3).Factory directly supply

4).Perfect quality and long lifespan

5).*-year limited product warranty

6).**-year linear power warranty

7).*2 years at *0% of minimal rated power output and *5 years at *5% of minimal rated power output

8).*5 years quality warranty