Yantai yunpan international trade Co.,Ltd. has purchased insurance for optical transmitter during the shipment. Once customers find the product is damaged, please contact us and we will arrange a refund or return for you. Before the product is shipped out, we ensure complete and full packagings of the product by using protective materials like bubble papers and wooden boxes. They prove to be functional to prevent the product from moisture, scratches, and damages. But once there are accidents during the shipment, we ensure customers' interests by seeking compensation from freight suppliers.

Presently, YUNPAN is one of the biggest access network equipment R&D and production bases in China. YUNPAN's switch equipment series contains multiple sub-products. Containing many luminophores, it still features good light colors consistency and is capable of emitting numerous kind of light colors, such as blue, orange, yellow, red, white, etc. The product supports multi-port access modes. YUNPAN provides consultation and after-sale support to maintain customer satisfaction. It is adaptive to a wide variety of scenarios: enterprise access, outdoor deployment, and FTTM scenarios.

We are committed to creating friendly and pollution-free surroundings. From the raw materials, we use, the production process, to the products’ life cycles, we are doing best to reduce the impact of our activities.