Our working period is 9 a.m. to 6 p.m. (Beijing Time). You may send us the email at any time you need and we'll respond as soon as possible. We request understanding when we didn't always react in time. Outside working hours, we would nevertheless do our utmost to satisfy your needs through our lineup and email.

Yantai yunpan international trade Co.,Ltd. is a professional manufacturer of power supply equipment. YUNPAN's microwave equipment series contains multiple sub-products. Unlike the traditional bulbs, the product is supplied with a low voltage to ensure users' safety. Thus, the inductance is developed as small as possible to ensure high peak current which produces enough brightness. It can be designed with an automatic power shutdown system in case of high temperature. YUNPAN aims to build the most professional sfp optical module company in China. The product has good heat dissipation effect.

We aim to increase the customer satisfaction rate. We always keep an open mind and respond actively to clients' every piece of feedback.