The Technology of Induction Lamps
The induction lamp is consisting of three main parts, the high frequency generator (always called electronic ballast or driver), magnetic coils and the induction tube. The electronic ballast is to generate high frequency current 230 KHz at rated power. When the high frequency current flows through the magnetic coils wrapping around the ferrite cores, inductive electric field is produced to maintain the gas discharging. The mercury vapor emits UV light which strikes the phosphor and makes the bulb light.