Osram Decostar bulbs are known for their excellent colour rendering and built-in UV block, making it a very suitable light source for retail shops. The Osram Decostar lamps are available in two bases: the GU4 and the GU5.3. Check your current base and use the filters on the left to find the most suitable option. The Osram Decostar works on 12V and needs a transformer to work properly. Despite the fact that these Osram Decostar lamps are a very popular light source, halogen bulbs are being phased out since the no longer fulfil the European energy standards. Lucky for you there are many LED alternatives for both GU4 and GU5.3 bulbs that come with even more benefits. Switching to LED decreases your energy consumption as well as maintenance cost since LED bulbs last much longer. Additionally, LED bulbs don’t flicker or emit any heat as well as being a much greener alternative.