... -Y40X3/SD09 Dust proof Easy maintaining pharmaceutical lighting fixtureCeiling mounted lighting fixture for fluorescent tubesMX-Y40X3/SD09MX-Y40X2/SD09(2*tubes)MX- ... life span.Rapid start-up without flicker and hummingUsed in cleanroom,hospital,hotel,shopping mall,work shop,etcCCC.CE.ROHS ... 652MX-Y40X2/SD0940WX21320 270 653MX-Y40X3/SD0940WX31320 375 65 cleanroom lighting fixture with white diffuser