|
|
|
|
|
#1
06-17-2009, 05:17 AM
|
||||
|
||||
Go
I currently have
Dual CF 96w and going to replace with dual T5HO 39W Am i downgrade my lightning? The CF generates too much heat and noise (fan) Please share your thoughts? Thanks ________ Yamaha Srx History Last edited by Coleus; 04-30-2011 at 04:43 AM. 
|
|
#2
06-17-2009, 05:25 AM
|
|||||
|
|||||
|
Hi there
Nope you are upgrading them. HO t5's are more powerful than what you have now 
__________________
|
|
#3
06-17-2009, 05:30 AM
|
||||
|
||||
|
Go
Thank you for your response. But i just came across this article and it seems like i need 5 of T5HO 39 watts bulb to produce almost the same lumen per gallon to my dual CF 96 W
" Dual CF 96w: 192 watts, 16200 lumens, 2.95 w/g, 249.23 l/g Quint T5 HO 39w*: 195 watts, 14015 lumens, 3 w/g, 215.62 l/g " Am i missing something? ________ SIDE EFFECTS FROM ZOLOFT Last edited by Coleus; 04-30-2011 at 04:43 AM.
|
|
#4
06-17-2009, 06:02 AM
|
|||||
|
|||||
|
Well, that depends... which bulbs specifically? What you really should be looking at (rather than watts per gallon or lumens) is the PAR output of individual bulbs. Also, watts per gallon guidelines don't hold true in tanks 10 gallons or less.
You will likely get better PAR values from the T5HO, simply because of the bulbs available, and specially if each bulb has it's own reflector (and a good reflector at that). Also, from what I understand, power compact fluorescents aren't as efficient at putting light into the tank. I think this is because the T5s are tubular in design and the reflectors can direct the light around the bulb into the tank, rather than having light reflected back at the bulbs (and therefore being lost). EDIT: I should add something here to help clarify this a bit... in terms of PAR output, LEDs are king but may seem dimmer at similar wattages than other light sources, simply because our eyes are rated in lumens, not PAR. 10 watts of metal halide will seem brighter than 10 watts of LED, but the LED will win out in coral (and plant) growth because the LEDs produce more PAR than the metal halides, and are therefore (to plants and corals) brighter. If that makes any sense 
__________________
Calvin --- Planning a 29 gallon mixed reef... Last edited by BlueAbyss; 06-17-2009 at 06:06 AM.
|
|
#5
06-17-2009, 12:37 PM
|
|||||
|
|||||
|
from doing PAR tests on both T5's and CF bulbs I have found that T5's have a 50% more output than CF, so if you are using 39w T5's they will put out about the same PAR as ~55 watt CF bulbs, so if you are staying at the same color of bulb then yes you are downgrading.
I would go to a 4 bulb fixture for the T5s if I was replacing two 96 watt CFs. Steve
__________________
 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
|
|
#6
06-17-2009, 02:51 PM
|
|||||
|
|||||
|
What type of fixture is it? Does it have individual reflectors?
__________________
260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa). http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here http://www.vimeo.com/2304609 and here http://www.vimeo.com/16591694
|
Hybrid Mode
