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• Like incandescent bulbs, halogen bulbs produce light by passing current through a coiled tungsten wire. The tungsten wire is enclosed in a small quartz or high-temperature glass tube, which is then filled with gases, including a halogen gas.
• The advantages of tungsten halogen bulbs compared with standard incandescent bulbs include less loss of light over lamp life; smaller physical size for better directional light control; whiter, brighter light; more light per watt; and longer life.
• Like incandescent bulbs, halogen lights have the advantage of instant-on light. They are easy to use with dimmers for energy savings.
• Typical halogen lamps last 2,000 to 4,000 hours compared to 750 to 1,000 hours for incandescent lamps. Wattage levels for home use run from 5 watts to 500 watts.
• More energy-efficient than standard incandescent bulbs. They generate up to 30 percent more light for the same electricity.
• Halogen bulbs blacken much less than incandescent bulbs and stay brighter as they age. Because of their brilliant white light, they are excellent for use in displays.
• Be careful not to touch the glass on halogen bulbs. This can degrade their lifespan and they can also be extremely hot within seconds of being turned on.