Energy Saving Eco Tubes Direct retro-fit to replace standard T8 fluorescent lamps Works with both magnetic and high frequency ballasts Latest highly efficient phosphors and filling gas produce comparable light outputs Saves in excess of 10% of the running costs Based on 20,000 hours ruin time (HF ballast) the 5ft tube will save 140kWh of electricity, and the 4ft tube saves 80kWh Triphosphor coating gives good colour rendering Fluorescent Triphosphor Triphosphor tubes have longer life, a lower mercury content, better colour rendering and higher lumen maintenance than their Halophosphate counterparts. The tubes are available in a variety of colour temperatures from 3000K (warm white) to 6000K (daylight) 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 35°C and typically provide 5% more efficiency in most ceiling applications when compared to equivalent T8 tubes Note Nominal tube diameter - T5=16mm, T8=26mm, T9=29mm, T12=38mm