And yet another lighting question - Page 2
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Beginner Freshwater Aquarium » Beginner Planted Aquarium » And yet another lighting question

And yet another lighting question

This is a discussion on And yet another lighting question within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Originally Posted by Byron I was going to initially suggest CFL daylight bulbs too, but consider that long-term these will take more energy. Over ...

Reply
LinkBack Thread Tools vBmenu Seperating Image Search this Thread vBmenu Seperating Image
And yet another lighting question
Old 09-22-2012, 03:48 PM   #11
 
Quote:
Originally Posted by Byron View Post
I was going to initially suggest CFL daylight bulbs too, but consider that long-term these will take more energy. Over a 50g tank you would need 4 CFLs and even with 13w [which is too little, more below] this means 54w of power being used, compared to the dual T8 fluorescents which would likely be 25w with 50w max. But the 13w CFL willnot be sufficient, another member had this and it wasn't enough. But if that doesn't matter, fine.
I agree about the wattage and efficiency issues, although it's a moot point now for this installation. The figures are actually worse than that. A 48" 55g tank would require a higher wattage bulb to illuminate the 21" height properly. I just don't have enough information about CFLs to make any kinds of calculations about them, even the illumination radius at 21". I'm going to look around and see if I can get some more information than what is on the box.
equatics is offline   Reply With Quote
Old 09-22-2012, 06:04 PM   #12
 
Quantum's Avatar
 
most all 48" T8s are 32 watts, and it is the fixture (ballast) that determines wattage not the tube

CFLs are functionally the same as any other fluorescent light, it is just that the ballast and tube are combined in one unit, the tubes, I believe are T2s or T3s, comparing them to linear tubes vis a vis wattage is difficult because of the different efficiency of the smaller diameter tube but also because of the spiral configuration, which means that the light is not delivered in the same manner
Quantum is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
CF lighting question No CO2 Beginner Planted Aquarium 1 08-26-2012 03:12 PM
Lighting Question... LasColinasCichlids Beginner Freshwater Aquarium 1 08-06-2011 02:08 AM
question about lighting Salix Beginner Freshwater Aquarium 4 06-25-2010 07:31 PM
a lighting question and a tank question beetlebz Freshwater Aquarium Equipment 2 12-12-2007 10:14 PM
Lighting Question... dee105 Freshwater Aquarium Equipment 1 05-17-2007 02:54 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 11:36 PM.