T5HO vs T5NO vs Overdriven T8 help - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 02-28-2012, 06:35 PM Thread Starter
Planted Member
flyfshrmn98's Avatar
Join Date: Oct 2011
Location: St Louis, MO
Posts: 258
T5HO vs T5NO vs Overdriven T8 help

I am trying to figure out how I want to do my lighting for a 75 gallon tank I am setting up. The lights will be retrofit into a canopy I am building with good reflectors around each bulb. I have several ballasts meant to drive multiple T8s, a Vossloh Schwabe ballast (EXVr 245.004) for T5, and a workhorse 5 ballast. I know if I overdrive T8 bulbs they will burn out faster, but they are also considerably cheaper than T5. I am looking to get med-high light and I have injected co2 and the lights will be about 5 inches above the water surface. Can I run T5NO bulbs on the workhorse ballast or can I only do T5HO? I am planning on 4 bulbs with either the T8 or T5. Will overdriven T8 be enough light. Id like to get the best light for the cheapest price and lowest power consumption if at all possible, I know a lot to ask for

Last edited by flyfshrmn98; 02-29-2012 at 01:06 AM.
flyfshrmn98 is offline  
Sponsored Links
post #2 of 6 (permalink) Old 02-28-2012, 07:36 PM
Planted Tank Guru
Nubster's Avatar
Join Date: Aug 2011
Location: Romney, West Virginia
Posts: 3,741
IMO I'd just go with T5HO. It will be less headache in the end and probably cheaper over the long run. A 75g tank is fairly deep so the T5HO will get more light to the bottom.

EVIL Camera Pimp member #1
NIKON Pimp Club member #012
SunSun Pimp Club member #069

20L OEBT/Super Tiger/PFR Tank 20L Yellow Neo tank

Nubster is offline  
post #3 of 6 (permalink) Old 02-28-2012, 07:57 PM
Planted Tank Guru
Join Date: Jul 2008
Location: East Lansing, MI, USA
Posts: 2,710
We'd need more information, such as model number, for the Vossloh Schwabe ballast to tell you what might work with it.

There are no wiring diagrams at Fulham.com for a Workhorse 5 running 28 watt T5 lamps. T5NO.

Diagram 11 at Fulham.com shows wiring the Workhorse 5 for two T5HO lamps.
dbosman@msu.edu is offline  
post #4 of 6 (permalink) Old 02-29-2012, 01:07 AM Thread Starter
Planted Member
flyfshrmn98's Avatar
Join Date: Oct 2011
Location: St Louis, MO
Posts: 258
flyfshrmn98 is offline  
post #5 of 6 (permalink) Old 02-29-2012, 01:16 AM
Planted Tank Guru
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,015
Lowest cost and lowest electric power usage are not compatible. The lowest power usage is with LEDs, but they cost the most up front. The lowest cost is with T8 shop lights, but they use the most power for a given light intensity. I would use two T5HO bulbs widely spaced - 108 watts of electricity, and good low medium to medium light.

Hoppy is offline  
post #6 of 6 (permalink) Old 02-29-2012, 01:48 AM
Planted Tank Obsessed
Algae Beater's Avatar
Join Date: Jun 2011
Location: Vancouver, Canada
Posts: 358
T5 NO bulbs are going the way of the dodo ... most bulb manufacturers are dropping them as HO bulbs for the most part can be used in NO fixtures.

IMO T5 ho is your best option, its what i use on my 75
Algae Beater is offline  

retrofit, t5ho, t5no, t8 light, workhorse

Quick Reply

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome