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Re: [APD] Over driving lights (again)
Other examples are running two bulbs on a four bulb
ballast, and you can just guess the various permutations
wtih all the ballasts and bulbs out there.
But remember folks, fluorescent bulbs are rather tolerant
of how they are driven. Don't make the same assumptions
about metal halide bulbs. they are not so tolerant but more
importantly, under some conditions of improper operation,
they can explode, which most aquarists considerable an
Also remember, that halving the bulbs on a ballast does not
equate to driving the bulb at twice the watts and even if
it did, you wouldn't get twice the light output -- as you
drive them harder, their energy efficiency drops. -- the
curve gets steeper (downhill) as the amount of overdrive
--- Paul Gray <PGRAY at websoft_co.za> wrote:
> For those of you that asked for information about over
> driving lights. Here is about the best place I have found
> that explains it. There are diagrams and all the rest and
> if you have any further queries most are handled on that
> forum as well.
> Here is the link:
> Paul Gray
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com
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