The Osram 12v 20W Decostar standard 205 lm GU4 Halogen Bulbs come in a pack of 10. These energy-efficient bulbs have a voltage of 12V and provide a bright light output of 205 lumens. With a bulb life of 4000 hours, these halogen bulbs are suitable for various lighting applications. Known for their quality, Osram is the brand behind these GU4 bulbs, featuring a standard bulb shape for easy installation in compatible fixtures. Ideal for home lighting needs, these bulbs offer reliable performance and a C energy efficiency rating.