Icefire
Seasoned reefer
Is it normal 24" give out way more lights?
http://www.aquariumpros.ca/forums/showthread.php?t=23934
http://www.aquariumpros.ca/forums/showthread.php?t=23934
I had a little time on my hands today, so I pulled out the light meter just to see how much punch these T5HO's really have over Power Compacts.
Here are the results:
T5HO
1x 24 watt 10,000K & 1x 24 watt actinic= 1930 Lux
3x 24 watt 10,000K & 3x 24 watt actinic=4,550 Lux
(under 6" of water)
T5HO
1x 39 watt 10,000K & 3x 39 watt actinic=1,200 Lux
3x 39 watt 10,000K & 3x 39 watt actinic=5,000 Lux
(under 6" of water)
Power Compact
2x 65 watt 10,000K & 2x 65 watt actinic=5,450 Lux
(under 6" of water)
T5HO
1x 39 watt 10,000K & 1x 39 watt actinic=1200 Lux
(16" to light fixture)
Power Compact
2x 65 watt 10,000K & 2 x 65 watt actinic=2,430 Lux
(16" to light fixture approximately 2" difference in water penetration from T5HO)
Lux per watt (based on one daylight and one actinic, and approx. the same distance-16" from the light fixture)
T5HO 24 watts=40.21 lux/watt
T5HO 39 watts=15.38 lux/watt
PC 65 watt=9.35 lux/watt
These are all factory units with no modifications, the study is based on a practical application and not a controlled lab study. Brand names and manufacturer's are not disclosed, because we simply wanted to see the difference between T5HO and PC lighting.
Light meter was a new Milwaukee SM700 with a submersible photo probe, accuracy 6%+/-, +/- 1 digit
Summary T5HO's pack alot of punch!