T5 Bulb PAR Comparison

[albert_dao]

*cough*

The following Albertan retailers carry both AquaScience and KZ bulbs:

Calgary

Gold Aquariums
Red Coral

Edmonton

Marine Aquaria

[banditpowdercoat]

OK, excuse my ignorance, what is PAR and how do I read/understand the info posted?

I presently have 2 Giesemann Midday and 2 Pure Actinics on my tank, As per Wendell's recommendation. I like them, but I know no different yet

[Myka]

albert dao: Thanks for the info. I will add it right away (and contact them about placing an order! ). Do you know what other T5 bulbs those retailers carry???

Originally Posted by banditpowdercoat

OK, excuse my ignorance, what is PAR and how do I read/understand the info posted?

I presently have 2 Giesemann Midday and 2 Pure Actinics on my tank, As per Wendell's recommendation. I like them, but I know no different yet

PAR = Photosynthetically active radiation, which basically means it's a rating of the output of light that is photosynthetically usable. Generally speaking, the higher the better for reef tanks.

http://en.wikipedia.org/wiki/Photosy...tive_radiation

I have learned to become lesser of a fan of the Giesemann bulbs. There are bulbs out there that produce equal or more PAR and don't have the dark ends like the Giesemann bulbs do. That's really my only complaint though. There are still decent lamps.

[zulu_principle]

Hi

We have the UVL/URI in 75/25 the balance are coming next week.



Wendell

[Myka]

Originally Posted by zulu_principle

Hi

We have the UVL/URI in 75/25 the balance are coming next week.



Wendell

Thanks! I will add it, I didn't know the 75/25 existed! Now we need PAR ratings for it. Are you going to be carrying the rest of the UVL fleet?

[midgetwaiter]

I assume this is the info from http://tfivetesting.googlepages.com/ ? As such it would be a good idea to specify that the data is from 54w bulbs running in a TEK light.

The PAR measurement for a 75.25 is 254

Aquarium Illusions in Edmonton carries Giesman and UVL

[Myka]

Originally Posted by midgetwaiter

I assume this is the info from http://tfivetesting.googlepages.com/ ? As such it would be a good idea to specify that the data is from 54w bulbs running in a TEK light.

The PAR measurement for a 75.25 is 254

Aquarium Illusions in Edmonton carries Giesman and UVL

No, I got the info from hunting through TheGrimReefer's posts on Reef Central. Now if I woulda known he had a website with it all neatly laid out I would have just bookmarked it instead of making this thread!!

In my case, I don't care what size the bulbs are or what fixture they're in. I'm looking at numbers relative to eachother. As long as they're all tested in the same unit, all should be relative.

Thanks for the link!!!