1.h shape fluorecent tube 4*55W or 4*14w or 4*18w all ok 2.Dimention:600*600*45mm 3.Voltage: ... 110v,60HZ,220V,50HZ 4.CE,ROHS Materials:Housing:1.Housing is made of high ... for light distribution of high efficiency without causing any glare.4.Applications:office,shop,workshop,hospital,supermarket,school,etc