The installation of ceiling fan with led should pay attention to the correct installation + balance, there are certain requirements for electricians. Qualified ceiling fan with led plus correct installation do not present safety issues. With two expansion screws fixed on the solid wood or cement roof, the roof bearing is more than 50KG, can not be directly hung on the decorative ceiling. The height should be enough, the length of ceiling fan with led's boom can be exchanged, after the installation of the blade from the ground shall not be less than 2.2 Meter. Every blade in the formal factory is weighed to ensure that the error is within a reasonable range. There are balance stickers in the box. If there is shaking in the operation, find the fan with the problem, affix the balance, and observe the adjustment position. Until the operation is stable, the installation is completedWelcome to buy the ceiling fan with led from our professional factory. As one of the certified China manufacturers and suppliers, we also offer the customized service and the wholesale service. Please be free to get the famous brands' products from us.