About Us Nanjing Keweisi Medical Lighting Technology Co., Ltd, located in the Nanjing Jiangning national industry pack, is one of the leading medical equipment sales and services company. The core products include Surgery Lights, Examination Lights, Headlights, Binocular Loupe as well as Light Sources. There are 4 series of 22 products obtained the CE certification and 3 series of 12 products obtained FDA registration. Nanjing Yanan Special Lighting Factory, founded in 1994, is our manufactory and research base. We have more than 70 skilled employees, include 10 research professions. All the products are independent manufactured and researched. Until now, we obtained 2 invention patents, 6 practical patents as well as ISO9001, ISO13485 certificates, and our products were sold to more than 30 countries.