One is to make a ring as a light band model and wrap the material to make vray. The basic material in this material is self-luminous material, which produces an appropriate amount of global illumination. The reason I want to join is that

Self-luminous materials are added to packaging materials because self-luminous materials can only produce brightness by themselves, but can not produce lighting effects on surrounding objects, which is necessary for lamp strips. The global illumination value in packaging materials is used to solve the effect that self-luminous materials can illuminate other objects. The larger the value, the stronger the lighting effect.

Another method is to create a circular figure, the size of which is the placement position of the light strip, create lights, such as vr plane lights, adjust parameters and angles, mirror an instance to the opposite side of the circle, group two lights, open the hierarchy-only affect the axis-alignment, select the circular figure, and then array.