Our Discharge lamps E27 / E40
These lamps have a long life and a very high efficiency - they are about 4 - 5 times as bright as halogen light of the same wattage. Some lamps may only be operated via a suitable ballast. After ignition of the lamp, the brightness increases slowly to full intensity after about 3 minutes. The lamps must not be dimmed. Sodium vapour lamps: Yellow light. Highest efficiency and longest life. For car parks, streets, harbours, historic buildings. Mercury vapour: White light. These lamps do not need an igniter, only a ballast, but they contain toxic mercury. Metal halide (HQI /HPI): White light. Less harmful mercury. Also available in coloured. For hall lighting, construction sites, buildings.
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