We provide Software as a Service (SaaS) and aim to build an open platform for the Internet of Thing (IoT) Industry, especially for the smart lighting sector. Citylink is a complete solution for the Smart Lighting control, Environmental Sensing, Wireless City and Public safety & Security. Citylink is a cloud-based platform, and lots of APIs are open to the current or future applications. With our support, enterprises are able to provide connected things to communities and cities.