These Philips LED tube lamps from the Master series, have been specifically designed as a value-for-money replacement to your standard G13 fitted fluorescent tube. Rated to A++ energy efficiency and with a life length of 50,000 hours, these lamps are an amazing economical and cost saving alternative for your lighting needs. The correlated colour temperature sits at 4000k, giving you a warm , natural light for illuminating your areas, and it`s colour rendering index of 83 gives you an even yet smooth glow. Features and Benefits: High light output of 1050-3700 lumens Direct replacement for G13 fitting T8 fluorescent tubing A++ energy efficiency rating so you get the most out of the lamp at minimal cost Long life lasting of 50,000 hours so there`s less need for replacements Typical Applications: General walkways Hospitality Retail Notes: The overall energy efficiency and light distribution of any installation that uses these lamps are determined by the design of the installation