G4 halostar starlite osramhalostar starlite allows for open lighting operation without a protective cover on the lamp equipped with uv reducing glass the strictest uv protection thresholds in accordance with iec 60432 are complied withlong average lifespan of 4 000 haxial coil for optimal light controlspecial pins as corrosion protectionfor operation in open lamps according to iec 60598 1dimmable