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Mercury vapor lamps (HQL) are often used as light sources for street and factory lighting because of the low investment costs. They need a ballast but not an igniter. Because of their low efficiency, mercury vapor lamps consume much more electrical energy than metal halide lamps or high-pressure sodium lamps for example to achieve a certain quan...
Mercury mixed light lamps (HWL) have an yttrium vanadate fluorescent. In commercial applications, these lamps are the perfect alternative to high-wattage incandescent lamps because they last longer and do not require either a ballast or an igniter. Lighting outlets with high-wattage incandescent lamps can be easily upgraded. HWL lamps can therefore provide low-cost lighting installations for factories and other large buildings.
Areas of application:
Areas of application