A: We are a manufacturer with professional certificates.

A: Yes, we absolutely test before shipment.

A: We now produce with 2 kinds solar cells, one is mono perc, the other is imported sunpower.

A: Generally, we pack our goods in neutral white boxes and brown cartons. If you need color boxes, we can customize according to your needs.

A: Sure. We have own R&D team, which can customize products according to customers' requirements.

A: Yes, we have detailed installation manual for each product.

A: Yes. We can supply the sample, but the customers have to pay the sample cost and the courier cost.