... 3.10000life span,1 year quality warranty 4U lots 45w to 85w light lamp ModelWatt (W)Voltage(V)Frequency (Hz ... separate part,so that the tube heat will not transfer to ballast.if reorder one part,saving 50%cost8.Combination ... glare, low-temperature start, wide voltage protection, electromagnetic interference with international EMC standards, advanced technology patch, quality stability guarantee .12. ...