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Re: T-8 ballasts
----- Original Message -----
From: Erik Olson <erik at thekrib_com>
To: Birdy <birdy at aa_net>
Sent: Monday, April 24, 2000 7:33 AM
Subject: Re: T-8 ballasts
> On Sun, 23 Apr 2000, Birdy wrote:
>
> > About T-8 lamps made specifically for aquarium use...
> >
> > I bought a couple at the Greater Seattle Aquarium Society Auction...
> > Therefor I know such things exist. One is called "the Tropic Sun, 5500K
> > daylight" They make the usual claims about the proper spectrum of light
for
> > aquarium plants. The manufacturer on the package is listed as
>
> Hmm... as I understood it, those were 3-foot bulbs, and I'm pretty sure
> they were 30-watt "traditional" tubes, not 25-watt tubes. Please check
> when you can, and post back to the list if they really are 25-watts.
> *Most* 3-foot tubes are T-8, but the "old" inefficient types. I've never
> understood why this is so, that 18" and 36" bulbs are often T-8 diameter,
> but 24" and 48" are T-12 diameter. Ah well.
>
> - erik
>
> --
> Erik Olson
> erik at thekrib dot com
>
I checked before bidding on them... on the package they came in says very
clearly 25 Watts. Haven't installed them yet, it is my intention to add an
electronic ballast to my lighting system... I am assuming that they are
"true" T-8's made for the more efficient electronic ballasts.