Lamp and heat dissipation control method thereof

According to the specific scheme, the lamp comprises a mounting frame, a lampshade and a lamp body, the lamp body is detachably connected into the lampshade, the mounting frame is rotationally connected with the lampshade, the end, away from the mounting frame, of the lampshade is a light outlet, and a fan used for dissipating heat of the lamp body is arranged at the end, away from the light outlet, in the lampshade. An annular plate is arranged in the lampshade, a driving assembly used for driving the annular plate to rotate is arranged in the lampshade, a plurality of adjusting holes are formed in the annular plate, a plurality of heat dissipation holes are formed in the outer side wall of the lampshade in a penetrating mode, and the adjusting holes and the heat dissipation holes are communicated in an aligned mode or staggered. A heat dissipation control device used for controlling the driving assembly and the fan to work is arranged between the lampshade and the mounting frame. 本发明公开了一种灯具及其散热控制方法，其灯具的具体方案