High efficiency 250w polycrystalline solar panel with best price China manufacturer

• First-class production technology and packaging technology.
• Adopting the world’s leading technology of silicon and polycrystalline power, higher conversion efficiency.
• Beautiful, stable, easy to take down the anodic aluminum frame electric degrees and has a wind resistant, anti-snow function.
• After the minus reflection process of the battery surface, it increases the absorption rate.
• By the high transmittance, low iron tempered glass, antiaging of the EVA(polyethylene-vinyl acetate), high performance crystalline 6.silicon solar cells, good weather resistance TPT(fluoroplastics composite membrane) by pyramid, has a good weather resistance and anti-UV, hail, water-proof capacity.
• Built-in bypass diode inside the junction box, which could prevent the effects dark spots of local damage to cells.

We specialized in export storage battery, UPS, inverter, solar power system and so on, rely on abundant  technical strength, full support of our customers and careful and strict management, our products are safe and sealing technology levels are industry-leading. we believe that the product quality is the base of the enterprise.

1.Warranty: 2 years.

2. Factory price, pricing could be lower while the quantity rising.

3. OEM cooperation with your brand, Could have your logo, or change the capacity as your   design.

4. Strict QA, QC process, guarantee the quality and delivery time.

5. One of the largest storage battery, uninterruptable power supply and inverter manufactures in China.

Q1: How do you control the production quality?

  A :1.All products will have 5 layer's of QC before delivery.

       2.Checking the raw material after they arrived in our factory.

       3.Checking all the details while the production line operated.

       4.Testing the products after they’re finished from productions.

       5.Checking all the products and cartons after they’re packed.

       6.Some products will have different QC processes but strict also.

Q2 : Do you accept OEM/ODM?

   A : ODM&OEM are warmly welcomed !!!

Q4: Can the price be cheaper?
   A: Of course, you will be offered a good discount for big amount.

Q5: What is your terms of payment?

   A:1.Sample: 100% of the sample cost before sampling.

       2.Mass Production: 30% deposit in advance, 70% balance when finished.

       3. Payment terms: usually T/T, also support West Union, PayPal, etc

Q6: What’s the delivery time?

  A: 1.Sample ready in 7-15 days, depends on the requests.                                              

       2. Mass production ready in 15-30 days, depends on the qty & factory’s producing.

Hunan Coowone Trading Co., Ltd.

Contact Name: Mokie Li

Whatspp/Wechat: 0086 18908436237

Skype/Email: sales10(at)

Ali TM: cn1514631776vrgh

Website: https://coowone.en.china.cn

Add: R3116, IDO Building, No.49, Kaiyuan Road, Xingsha Town, Changsha City, Hunan Province.