Magnetic Induction lights, also called electrodeless lamps, consist of a high-frequency power generator, a coupling device that generates a magnetic field (essentially a magnet), and a glass housing that contains the solid mercury in our case and phosphor coating. The main advantages of induction lighting are the ability to produce a substantial amount of light in a relatively compact package and an extremely long lamp as a result of the electrodes. The major drawback of induction lighting is high cost per product however as a result of the electricity savings and reduced re-lamping costs the return on investment is short. In applications where maintenance costs are high, though, induction lighting systems can be cost-effective.

Existing induction-lamp products are aimed at two distinct market niches. The higher-wattage versions available (55 to 165 W) offer very long life (up to 100,000 hours) and can be a good choice anywhere that relamping and maintenance are difficult or hazardous. These lamps have been used in all of the following locations:

• Escalator wells
• High-ceilinged spaces, including atriums (such as over open mall areas) and in warehouses and factories
• Parking garages
• Roadways, including bridges, tunnels, underpasses, and signs
• Exterior pedestrian lighting

Lower-wattage induction lamps which are commonly referred to as self ballasted induction bulbs (23 and 40 watts) are also available as direct replacements for medium-base incandescent and compact fluorescent lamps. They produce approximately 50 lumens per watt, Color Rendering Indexes of 82, and an expected life of 55,000 hours.