Manufactured according to the standards of IEC, ANSI, DIN, BS, ect. The products are of good performance and steadily quality and highly appreciated and gain good reputation in more than thirty countries and regions in the world. Our factory have ISO9001 certification. For instance, our porcelain products had passed PSE laboratory test, CE laboratory test ,SGS laboratory test successfully and attained PSE approval, CE approval and ROHS approval. We are the only one supplier of lampholder to Japan market in our area.