... ballast 2years warranty for standard quality9, Retrofitting T8 to T5 tube, direct plugged into the existing T8 ... and no modification cost to the existing T8 light fixture.11, PC inflaming retarding converter lampholder12,Installation: Mounting ... by screw fixing or series connection.13, TUV, CE, RoHS approved14, Month production:100000pcs13, multi-link module ...