electronic ballast vs magnetic ballast

ballasts and bulbs work together you get better results with some combos then others.

It's probably easier to choose the bulbs you like then choose the ballast that works best for them.

Manhattan Reefs - Sanjay's Lighting Guide

judging by skimming of sanjays guide, electronic out preform magnetic at lower wattages while the reverse is true at higher wattages. of course the quality of what you buy makes more of a difference then the type.