Triphosphor tubes have longer life, a lower mercury content, better colour rendering and higher lumen maintenance than their Halophosphate counterparts. Extended life expectancy which can be increased by upto 20,000 hours with the use of high frequency luminaires Shatter resistant versions available which retain the fragments in the event of a breakage Option of triphosphor tubes with internal reflectors, which reduce waste light and increase light output by up to 75% 16mm (T5) tubes provide a compact alternative to T8 tubes, offering peak performance at 35­C and typically provide 5% more efficiency in most ceiling applications when compared to equivalent T8 tubes