Analysis of Various Reflectors and T8/F032 (48") Fluorescent Lamps
Designing/updating old hood designs from 4+ years ago prompted the
creation of these pages containing a variety of reflector designs and
their light distribution patterns. Intended use is on a 29 gal (30")
tank and a 75 gal (48") tank.
The 75 gal with 4 Sylvania T8/F032/850 5000K bulbs is pictured here:
http://webpages.charter.net/videodoctor/aquaria/aquarium01.jpg
Lamp length is not im****tant when analyzing the cross section of
reflectors, so these example designs work using tubes from 24" to 48".
Reduced light loss and heat generation (increased efficiency) were the
primary goals. Several manufacturers now market 30" bulbs which match
the length of a 29gal tank. A medium light tank would include two of
the better designs and materials combined with T8-F025 (30") bulbs.
High light tank would require 3-4 tubes. Electronic ballasts are
highly recommended for all applications. Both 12" and 18" distances
have been charted.
http://webpages.charter.net/videodoctor/aquaria/Comparison18.htm
Also included are charts for a flat reflector, no reflector, and a 180
degree reflector bulb for comparison purposes. Something to ponder...
Enjoy!
FWIW,
Greg G.
