light source:LED light ,T5 1.high slim LED panel 2.high brightness 4,span life:50000hours Size in millimeterSize in inchesPower consumption(w)840*594(A1)33inch*23inch18W420*594(A2)17inch*23inch13W420*297(A3)17inch *12inch9W700*500(B1)28inch*20inch17W700*100028inch*40inch24WKey Features:CE,SAA,ROHS,FCC,PSE,ISO9001:2008 approved.Super slim profile:Long lifetime:up to 50000 hours.5 years ...