The Parathom Advanced classic range of LED GLS light bulbs from Osram feature high colour consistency and consumes only 20w of electricity despite having a light output equivalent to 150W incandescent (around 80% less power consumption than conventional light bulbs) due to their LED technology.If you need a powerful lamp, then the 20W LED is a suitable alternative for a traditional 150W incandescent lamp, and is easy to retrofit due to its compact design.Dimmable. Very long lifetime of up to 25,000 hours. Low energy consumption. High color consistency thanks to narrow binning.Easy replacement of classic light bulbs thanks to compact design. Instant 100 % light, no warm-up time. Features a commonly used ES-E27 Edison screw (27mm) cap/base.LED alternative to conventional 150W light bulbs.Good quality of light; color rendering index Ra : 80; constant chromaticity.For a full list of compatible dimmers please see www.osram.com/dim.