Our filaments are externally tested using LM-80 and TM-21 standards to provide lifetime calculations in hours.
- For our sapphire filaments (rigid, straight filaments) we recommend 30,000 hours. External testing shows it is possible to recommend 33,000 hours. These calculations are relevant to all products in the Tala portfolio with the exception of the Voronoi, Sphere & Basalt ranges [please see below].
- For our FPC flexible filaments – external testing recommends a value of 15,000 hours useful lifetime. ‘Useful’ is defined as still emitting more than 70% of the original light output. This applies to the Voronoi, Sphere and Basalt ranges.