Induction Lighting: Technical Information

Magnetic induction lamps are basically fluorescent lamps with electromagnets wrapped around a part of the tube. High frequency energy from the electronic ballast is sent through wires, which are wrapped in a coil around the ferrite inductor, creating a powerful magnet. This induction coil produces a very strong magnetic field which travels through the glass and excites the mercury atoms in the lamp. These atoms emit ultraviolet (UV) light, which is converted to visible light by the phosphor coating on the inside of the tube.

Special thanks to L. Michael Roberts for this explanation and diagram.