E40 powerstar hqi ep halogen metal steam bulb with quartz technology osramadvantages of the uv filter technologydecreased brittleness of plastic parts in lampsthe uv filter from the bulb corresponds with the requirements from iec 61167applicationsindustrial offices and warehousesoutdoor lightingpermitted for open and closed lampstechnologycompensating capacitor at 50 hz 45 f typical value with rated voltage and cos 09 construction output 420 wnominal output packaging 400 w colo