In article ink.net, Christopher wrote:
which is better?

Better for what?

The Coralife seems to be a "true" 03 Actinic. The Hagen is a high
spectrum lamp, but it is not Actinic. '03 Actinic' is a specific brand
by Phillips, that has come to mean a tube that produces a high
spectrum light that is almost beyond the visible range. Actinic is
used by reef keepers to compenstate for yellower lights and make a
reef tank more pleaseing to the eye. Actinic is also used to make
corals floresce.

Also the Hagen uses T-10 size tubes which is fine if that is what you
need, but T-12 is more common.


Here is another source of Actinics
http://hellolights.com/fluorbulac.html
The "Super Actinic R" have an internal reflector.