For the first time, the product is shown in the form of animation. This design adopts a multi-thread light control assembly. By rotating the adjusting piece, the lens on the lens base is driven to perform telescopic movement, so as to realize the relative distance adjustment between the optical assembly and the light source assembly, and then complete the adjustment of the light spot from 15 ° to 60 °. The adjustment process is stable and the rotation force is uniform, the damping convex strip makes the lens base and the outer cylinder cooperate and fixedly connect, so that the positions of the two can be limited and fixed, effectively avoiding the shaking of light and ensuring the lighting effect.