Canreef Aquatics Bulletin Board  

Go Back   Canreef Aquatics Bulletin Board > General > New to the Hobby

 
 
Thread Tools Display Modes
  #1  
Old 07-26-2004, 07:17 PM
tstevens's Avatar
tstevens tstevens is offline
Member
 
Join Date: Jul 2003
Location: Kingston, ON
Posts: 26
tstevens is on a distinguished road
Default Lumens vs Kelvins

Question to all the lighting guru's out there:

I was wondering if Lumens can be Converted into Kelvins?

ex 800 Lumens = ???K

Just wondering,

Troy Stevens
__________________
Confucious say, \"Man who have hands in pockets, feel cocky all day\"
  #2  
Old 07-26-2004, 07:38 PM
Aquattro's Avatar
Aquattro Aquattro is offline
Just a guy..
 
Join Date: Aug 2001
Location: Victoria, BC
Posts: 18,053
Aquattro is a jewel in the roughAquattro is a jewel in the roughAquattro is a jewel in the roughAquattro is a jewel in the rough
Default

Nope, just looked up some stuff. Lumens are units that measure how bright, or rather how much light hits a certain area at a certain distance (or something like that).

KELVIN. This describes the color temperature or the description of warmth or coolness of a light source. When a piece of metal is heated, the color of light it emits will change. This color begins as red and graduates to orange, yellow, white and then to blue-white and finally to deeper shades of blue.

so no correlation exists between the two.
__________________
Brad
  #3  
Old 07-26-2004, 07:39 PM
powerboy powerboy is offline
Member
 
Join Date: Aug 2003
Location: inside a faraday cage in the middle of a lightning storm
Posts: 35
powerboy is on a distinguished road
Default

kelvin is a unit of absolute temperature, where as lumens is the unit of luminous flux equal to one candle intensity. the lumen is the time rate of flow of light.
  #4  
Old 07-26-2004, 07:45 PM
tstevens's Avatar
tstevens tstevens is offline
Member
 
Join Date: Jul 2003
Location: Kingston, ON
Posts: 26
tstevens is on a distinguished road
Default

Ok that makes more sense now, thanks for the info.

I'm trying to figure a way to build a DIY "poor-mans" pc setup for a fuge or a small frag cutting tank. I have access to several smaller pc bulbs ranging from 7W to 26W, just don't know the colour temp. The only listing is 800 lumens.

Is this possible or should I just bite the bullet and buy a pc retrofit kit?
__________________
Confucious say, \"Man who have hands in pockets, feel cocky all day\"
  #5  
Old 07-28-2004, 12:40 PM
tstevens's Avatar
tstevens tstevens is offline
Member
 
Join Date: Jul 2003
Location: Kingston, ON
Posts: 26
tstevens is on a distinguished road
Default

Anyone have any ideas or input on this one for me?
__________________
Confucious say, \"Man who have hands in pockets, feel cocky all day\"
  #6  
Old 08-06-2004, 06:04 AM
AJ_77's Avatar
AJ_77 AJ_77 is offline
Member
 
Join Date: Mar 2002
Location: Calgary NW
Posts: 2,772
AJ_77 is on a distinguished road
Default

Quote:
Originally Posted by tstevens
I have access to several smaller pc bulbs ranging from 7W to 26W
You're going to need a bigger bulb, and more of them. 7-26W is next to nothing, unless you have a bank of them. Look at something in the 55-65W range to start. Lots of possibilities there.

Oh, and 6400 K or higher for a nice look. I got some 55W 6500K PC bulbs at Brite-Lite for around 15 bucks each. They're pretty crisp.
__________________
----------------------
Alan
 


Posting Rules
You may not post new threads
You may not 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
Forum Jump


All times are GMT. The time now is 11:53 PM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.