Philips Lighting 54 W T5 Fluorescent Tubes, Cool White, 4000K, 85 CRI, 4400 lm, 1150mm, 3.8ft

White Triphosphor Fluorescent T5 Tubes Good economy and efficiency Up to 50 % smaller by volume than comparable T8 lamps and more energy efficient Natural colors Very good lumen maintenance >90% throughout the life of the lamp Long average life time Good color rendering Dimmable 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