The Osram Parathom LED Spot GU4 MR11 4.5W 345lm 36D - 927 Extra Warm White | Best Colour Rendering - Dimmable - Replaces 35W is a reliable and cost-effective LED spotlight bulb designed for fixed or dynamic lighting applications. It's energy-efficient, boasts a great lifespan and has a crisp light output. That's all because LED technology uses a semiconductor to produce light rather than a filament. LED technology also means savings of up to 75% in energy costs compared to traditional lighting technologies. A lifespan of 25000 hours means maintenance costs are reduced too. The Osram Parathom LED Spot GU4 MR11 4.5W 345lm 36D - 927 Extra Warm White | Best Colour Rendering - Dimmable - Replaces 35W has a GU4 base that's also commonly referred to as MR11. It has a colour code of 927 Extra Warm White that refers to its rating of 90-99 on the colour rendering index (CRI) and its colour temperature of 2700K - Extra Warm White. Osram's LED-integrated products maintain the same level of light output throughout their lifetimes. When installed in enclosed fixtures, these bulbs can be used for industrial and street lighting.