Re: T-8 fluorescents

>From: krombhol at felix_TECLink.Net (Paul Krombholz)
>Date: Sat, 11 Nov 1995 12:27:43 -0600
>Subject: Re: T-8 fluorescents
>T-12's are the common, 1.5 inch diameter fluorescent lights.  T-8's are
>only 1 inch diameter.  They are brighter, and you can pack them closer
>together.  I made a light fixture for a fifteen gallon plant tank that has
>four two foot T-8's, run by an Advance electronic ballast (REL-43P2-RH-TP).
>This ballast can run 3 or 4 T-8's, which can be 48 inch, 36 inch, or 24
>inch bulbs.  It cost me around $26.00.  Using a light meter, I found that
>the four T-8 bulbs put out about twice as much light as three T-12 bulbs. I
>agree with Karen.  T-8's are definitely better than T-12's.   I have plans
>to replace the two T-12's on my 55 gal with four T-8's and the four T-12's
>on my 75 gal with eight T-8's.
>Paul Krombholz                  Tougaloo College, Tougaloo, MS  39174

This is probably a stupid question but if T-8's are brighter (provide more 
light??) than the T-12's, why do you feel that you have to replace your 
T-12's with twice as many T-8's