Low Voltage Halogen Light Bulbs Halogen Light Bulbs where first invented by GE Lighting in 1958. A halogen light bulb simply uses halogen gas to allow the halogen light bulbs to burn more brightly and also ensure that the life cycle of the lamp is not shortened. Halogen Light Bulbs produce a very clear and crisp light output, unlike the incandescent light bulbs they replace that can give out a yellowish glow. Most commonly known for the GU10 Halogen Light Bulbs and the MR16 Halogen Light Bulbs are also available in many different shapes and wattages. A complete a full range of spot light bulbs are available as well as larges GU10 Light Bulbs known as the AR111 halogen Lamps. The traditional MR16 Light Bulbs that are 50mm in Diameter are now available in 35mm Diameter known as an MR11 and also 25mm Diameter known as an MR8. These lamps can sometimes also be called GU4 Light Bulbs.