LED ceiling lamp is adsorbed or embedded on the roof ceiling lighting, it is the same as the chandelier, but also the main indoor lighting equipment, is home, office, entertainment and other places often choose lamps and lanterns.LED ceiling light generally diameter in about 200mm ceiling light suitable for use in the corridor, bathroom, and diameter of 400mm is installed in the top of the room is not less than 16 square meters is appropriate.The LED ceiling light on the market commonly has two kinds of D-shaped tube and annular tube, and the difference between the size of the tube.Choose and buy LED ceiling light to see three.A look at the product logo is complete, the formal product logo is often more standard, should be marked: trademark and factory name, product model specifications, rated voltage, rated frequency, rated power.Two to see whether the power cord of the lamp has CCC safety certification mark, the cross-sectional area of the external conductor should be ≥0.75 square millimeters.See whether the electrically charged body of lamps and lanterns is exposed, after the light source loads the lamp holder, the finger should not touch the electrically charged metal lamp holder.