The general large-scale performances at the top stage background lamp mounting the head light can shoot a beam, but ordinary lighting is different the light beam and high brightness, lighting above like wearing a hat with a brick, don't know where I can buy this lamp?
I guess you're talking about computer scanning lights, or computer magic head lights.
Beam lampThe wide angle is small, so it is brighter than the head shaking. The light beam is dominant, while the head shaking is mainly based on the beat effect. The light beam that shakes head is better than the beam light. Taobao also sells Baidu, also can search.
That is, computer lights, where the stage equipment can be bought, VL, Martin and so on