Packaging: The packaging contains 4 pieces of ceiling light plates, with 8 pieces of M4x18mm screws and nuts, 8 pieces of ceiling screws and 8 pieces of rubber plugs. Materials: The roof plate brackets are made of metal and use a high-quality electroplating process. Its surface is electroplated, smooth, corrosion-free, corrosion-resistant, stable and durable. Dimensions: The size of the bottom plate is 90x18 mm, the side height is 16.5 mm and the thickness is 1.5 mm. Carrying capacity: If correctly installed in a suitable place, the lamp's mounting bracket can withstand approx. 5 kg. Use: This ceiling light can be used to fix a ceiling light with a diameter of 95 to 115 mm. It is mainly used for hanging ceiling lamps for home offices, chandeliers,