... years warranty 4.Adjustable High power 10W/15W/20W COB ceiling lamp for showroom with good quality and competitive price. ... ,Edison,different chips with different price Showroom LED Ceiling Lamp Application:Indoor ceiling in the office,house,exhibition,museum,aisle,hall ... high stability5.No harmful emission6.Dimmable lighting system Showroom LED Ceiling Lamp Service:1.OEM or ODM is available2.Sample ...