The Osram Halostar GY6.35 and G4 halogen bulbs are capsule bulbs that because of their compact size fit perfectly in small open fixtures. The Osram Halostar halogen bulbs provide light of a very good quality and in addition have an excellent color rendering index. Because of this you can easily create natural ambiance! The Osram halogen light bulbs from the Halostar line are available in the GY6.35 and G4 base where the difference lies in the distance between the pins (6.35mm and 4mm). The Osram Halostar has a UV-filter that provides protection to illuminated objects against heat and discoloration.