1. When the lifting is finished or stopped, the drum of the hoist can be reliably braked and stopped normally; 2. Control the running speed of the lifting container, ie the working brake, during the deceleration phase and when placing heavy objects; 3. When an emergency occurs in the hoist, the hoist can be automatically and quickly erected to protect the lifting system, that is, the safety brake; 4. The double drum hoist can lock the swimming roller when replacing the lifting level, replacing the wire rope or adjusting the rope. This Ceiling Fan with light kit like bulbs, blades and remote control which can control not only the light setting but also the wind speeds. What's more, the blades will automatically stretch out and put inside when this was Retractable Ceiling Fan and when it put inside only a beautiful lamp left. Retractable Ceiling Fan With Bulbs,Decorative Ceiling Fan With Bulbs,3-Blades Ceiling Fan With Bulbs,4-Blades Ceiling Fan With Bulbs ZHONGSHAN UFAN ELECTRIC APPLIANCE CO. LTD , https://www.uflightceilingfan.com