LED ceiling lamp is a kind of lamp that is adsorbed or embedded on the roof ceiling. Like the pendant lamp, it is also the main indoor lighting equipment, and is often used in various places such as home, office and entertainment. LED ceiling lamps with a diameter of about 200 mm are generally suitable for use in walkways and bathrooms, while those with a diameter of 400 mm should be installed on the top of a room no less than 16 square meters.