Quote:
Originally Posted by IanJ
I think if you view the bulb/ballast comparison data available on USA websites, it is clear that electronic ballasts run the bulbs at a lower wattage, this tends to be reflected in the brigtness of the bulb. the HQI ballasts draw more watts and are brighter.
Is that not correct?
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All manufactured products have tolerances, the same brand/model may not have the same measurement. Electronic ballast have higher efficiency in the sense that they have a higher powerfactor, it simply means that less reactive power is used.
Its not recommended that bulbs should be overdrived. It will only shorten the lifespan and risk failure with that little extra brightness.