Based on the principle of electromagnetic induction, not like the ordinary fluorescent lamp using electrode to change power into the energy for working, the induction lamp couples the circuit and plasma and uses the outside core to produce electromagnetic current. The outside core is similar as the transformer's primary coil, and the closed-tube is similar as the transformer's secondary coil. The electric ballast can separate from tubes of 0-20m based on any requirement. When connected with power, the electric ballast will produce the alternating current which is more than 1.5MHZ, and then generate AC magnetic fields in discharge area. Based on Faraday 's principle of electromagnetic induction, the changing magnetic field will generate induced current. And then make the mixed steam consisted of low-pressure mercury vapor and inert gas discharge, radiate 253.7mm Ultraviolet light. And then transfer the phosphors into visible light.

Because of don’t have the fragile electrode, the tube doesn’t have vulnerable Components and let its life depends on the electric ballast, the induction lamp has a super long life, it may continuously work for 60,000 hours. Especially used in such dangerous place which the lamps are expensive and difficult to change, like tunnel, complex road, subway, factories with high ceiling, dangerous area, hall, stadium etc. Besides, the non-electrode fluorescent lamp has same other features, like high efficiency of more than 80 lumens per watt; can immediately start anytime, low-temperature start(-26℃), no flicker ; can be used in DC power supply and emergency lighting. Because of don’t have the electrode, it will not influenced by frequent switching. The ring or elongated shape may fit all kinds of fixture. And 99.6%of the material can be recycled, which is environment-protecting.

Absolutely, the induction lamp will be more and more important in lighting market in the nearly future