With the development of technology, smart lighting is more and more popular, on the other hand, modular design allows products to meet more personalized needs. Strealight is a smart modular lighting for children. It consists of three modules: a lamp module, an information inputting module which has a single sensor in it, and a module to supply power for the information inputting module, it also has a base and an APP. While using, the user just needs to assemble the modules and complete setting on the APP. This lighting not only can be assembled into multiple forms, but also can allow children to create more personalized functions because of its modular function and easy operation.