At Lampshoponline you can still buy T12 Tubes. We have stock of T12 Fluorescent tubes in all sizes - 2ft 20w T12 (F20w), 4ft 40w T12 (F40w), 5ft 65w T12 (F65w), 6ft 75w T12 (F75w) and still have stock of 8ft 100w T12 (F100w) Tubes.
T12 fluorescents are becoming increasingly difficult to source as many people prefer more efficient T8 and T5 tubes. Most T12 tubes can be started using the same starter as T8 tubes but 6ft 75w T12's and 8ft 100w T12's require the 75-100w starter switch.
T12 lights are frequently used in warehouses, factories and garages.