Tianjin Carel Tech CO.,Ltd is a transformer manufacturer located in Tianjin City of China. We have over 35 years of transformer producing and designing experiences. We started making transformers for domestic TV suppliers and then we changed our focus on overseas markets. Now we export 80% of our products to all over the world. We are ISO9001:2008 certified company. Most of our products are CE approved. bridget at carel-tech dot com, All of our products meet ROHS requirements. Some of our products are UL/CUL approved