... used in houses,home,bedroom,hospitals,hotels.2.Warm light :2700K:a soft light,we will feel pleasant,comfortable,peaceful used in ... ,hotels,restaurant and waiting room.3.Day light:6500K:this light is similar to nature light ,make us feel concentrate,used in offices ... and exporting from 2010.Our main products are half spiral lamp,full spiral lamp.lotus lamp,2u,3u,CFL tube ,PCB ballast ...