Low frequency with square wave output, no flicker and acoustic resonance,

Pulse interval ignition,

Constant lamp power,

Controlled start routine,

Peak lamp performance,

Lamp color stability,

Rapid run up to full power,

Auto shut down with faulty lamp,

No audible noise through start up,

Auto shut down with no lamp, high voltage lamp, end of lamp life or short circuit lamp,

Earth required for EMC suppression earth terminal continuity,