... 37.5CM×22CM(12 pcs)Showroom LED Ceiling Lamp Options:1.Available light housing color:white,black2.Available light source:warm white ... Cree,Edison,different chips with different price Showroom LED Ceiling Lamp Application:Indoor ceiling in the office,house,exhibition,museum,aisle ... ,hall,etc Showroom LED Ceiling Lamp Features:1.Long life span2.High power multi-chip ...