These T8 1 inch diameter standard tubes have a halophosphate coating to give a standard performance. Typically we supply the following brands: Philips, Osram, Sylvania and General Electric GE. Lengths include 2 foot 20W, 3 foot 30W, 4 foot 36W, 5 foot 58W and 6 foot 70W.
We advise you to upgrade to a superior quality triphosphor tube where your needs require longer life, higher and better quality ligh output, improved colour rendering CRI Ra and better lumen maintenance.