They're used in a range of lighting products, including some floor lamps, reading lights, grow lights, slide projectors, and outdoor lights.

Because halogen bulbs burn very hot, they can present a serious fire hazard if not used properly.

• A halogen lamp should never be used in a child's bedroom or playroom. You might tip it over and cause a fire.
• Never hang anything (such as a scarf or clothing) over a halogen lamp, even if it is turned off. The fabric could easily catch on fire.
• Never hang balloons, or other decorations near a halogen lamp.
• Keep halogen floor lamps away from bunk beds.
• Turn the lamp off when you leave the room.
• Do not try to replace the bulb of a halogen lamp by yourself. Get an adult to help you.