A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable..

A:Sample needs 3-5 days, mass production needs 1-2 weeks for order quantity more than one container

A: We are the factory with high production capacity and product range of solar products in China.

A: According to your daily electricity consumption, we will make appropriate recommendation  .

A: Sample shipped by DHL, UPS, FedEx ,TNT etc. It usually takes 3-5 days to arrive. Airline and sea shipping also optional .

A: We offer 3 years warranty for the entire system and replacement with new ones for free in case of quality problems.