Halogen lamps consist of a tungsten filament inside a quartz envelope that is filled with halogen gas. In halogen lamps, the quartz envelope is closer to the filament than the glass used in ...
That sounds impressive until you read the fine print: "compared with worn standard halogen" bulbs. Still, such claims are making premium-priced halogen bulbs an alluring choice for drivers.
Sales of halogen lightbulbs are to be banned in the UK from September, with fluorescent lights to follow, under government climate change plans. The move will cut 1.26 million tonnes of carbon ...