Tony_Caliente;429952 wrote: What does the term "overdriven" mean in the context of lighting?
Generally, it means increasing the current through a lamp so that more light is produced. Ususally, special ballasts are required to do this effectively, but several methods of accomplishing the same effect using conventional technology have also been demonstrated. IceCap brand ballasts are a common means of overdriving bulbs. Their flourescent ballsts generally deliver 40-50% more light. They also claim they avoid shortening the lamp life by using high frequency waveforms. These have been tested and work as claimed.