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MH bulb 150Watt |
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MH bulb 150Watt |
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09-09-2005, 09:00 AM
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#1 |
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Just Moved In
Join Date: Aug 2005
Location: singapore
Posts: 44
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MH bulb 150Watt
Hi , ignorance about light . . .
is there different kind of MH bulb , in terms of the light emitted . I saw some which is white with a little blue . And other is like sunlight , , glowing in orangy and then into normal bright form. Are those which have little blue in them consider as actinic light ? Which is better ? Thanks for reading |
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09-09-2005, 01:51 PM
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#2 |
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Moderator
Join Date: Aug 2004
Location: Spokane WA
Posts: 738
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Hi Mman!
Yes MH bulbs are available in different "colors". 6500K, 10k, 12K, 14K, 20K. The K stands for kalvin... It represents the "color" of light emitted by the bulb. 6500K are more yellow looking and are closer to the sun. As you move up in kalvin the color appears to be more blue. It corelates directly to the color spectrum. 700nm are red down to 400nm blue.... Blue or 400nm (20K bulbs) penetrate the water much deeper than 6500K and are better for a deeper tank. I have also seen charts that show that a majority of corals do better under 20k. The down fall is that our eyes won't be able to pick up the oranges, reds, yellows as well with this bulb so it should be supplimented with 6500k or 10K VHO's or PC bulbs... Also I would go with 250W MH as they are easier to find as well as less expensive then 150W set ups.... That was kind of a crash course that my not be explained all that well. Maybe someone else can chime in and elaborate.... Here is an artical by Sanjay Joshi on lighting: http://www.advancedaquarist.com/2005/8/aafeature There are also many other articals about lighting on that site you just need to check the past articals.....
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Greg 25 gallon reef with 20 gallon sump/fuge 375 gallon reef with 100 gallon sump/fuge: under construction Over time science has shown that the simplest answers are usually the correct ones....... |
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09-10-2005, 08:58 AM
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#3 | |
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Keeper of Willis
Join Date: Jul 2004
Location: NW Montana
Posts: 6,345
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Quote:
Thanx for the help Greg!!! Kalvin used to live next door to me tho, I think you meant Kelvin.   |
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09-10-2005, 09:13 AM
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#4 |
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Moderator
Join Date: Aug 2004
Location: Spokane WA
Posts: 738
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That's what happens when you post something and your not really awake yet....
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Greg 25 gallon reef with 20 gallon sump/fuge 375 gallon reef with 100 gallon sump/fuge: under construction Over time science has shown that the simplest answers are usually the correct ones....... |
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09-10-2005, 09:19 AM
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#5 | |
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Keeper of Willis
Join Date: Jul 2004
Location: NW Montana
Posts: 6,345
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Quote:
What in the heck are you doing awake now???? , for that matter, what am I doing awake now??????  By the way Mman, Greg gave some great advice, and links. Right on man  |
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09-10-2005, 01:00 PM
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#6 |
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Just Moved In
Join Date: Aug 2005
Location: singapore
Posts: 44
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light
Hi thanks alot Greg for the information/advise ..
appreaciates that . |
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09-10-2005, 05:25 PM
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#7 |
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Moderator
Join Date: Aug 2004
Location: Spokane WA
Posts: 738
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Mman,
Your welcome! I hope it helped.... Hey Charlie! I had to get up early today to take my folks to the airport.... It was nice they where here but I am glad to see them go....
__________________
Greg 25 gallon reef with 20 gallon sump/fuge 375 gallon reef with 100 gallon sump/fuge: under construction Over time science has shown that the simplest answers are usually the correct ones....... |
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09-10-2005, 05:28 PM
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#8 | |
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Keeper of Willis
Join Date: Jul 2004
Location: NW Montana
Posts: 6,345
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Quote:
I hear ya there!!!!!! Thanx again for the cover, I appreciate it. |
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09-12-2005, 12:40 PM
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#9 | |
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Just Moved In
Join Date: Aug 2005
Location: singapore
Posts: 44
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Mh
Hi
I have bought an ignitor to fix my MH .. haha ... at the same time bought a 6500K bulb .. and it work fine ... [ for testing the ignitor ] ;p Maybe will be changing both MH again to 14k bulb ... Quote:
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09-12-2005, 12:44 PM
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#10 |
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Just Moved In
Join Date: Aug 2005
Location: singapore
Posts: 44
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Cost
cost of bulb
what is the cost of bulb says 6500k 10k 14k . how much is selling at your country ? Bought my osram 6500k bulb at $SGD30 just curious ... |
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09-12-2005, 01:24 PM
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#11 |
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New in Town
Join Date: Sep 2005
Location: "In My Own Little World"
Posts: 1
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^ about $79.99
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 AREA69
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09-12-2005, 03:33 PM
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#12 |
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Owner
Join Date: Feb 2000
Location: Bardstown, KY
Posts: 13,166
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I think our XM's were $61 but they are 250w DE's.
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09-13-2005, 12:51 AM
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#13 |
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Just Moved In
Join Date: Aug 2005
Location: singapore
Posts: 44
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hmmm .. okie .. thanks for sharing
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09-13-2005, 01:09 PM
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#14 |
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Moderator
Join Date: Aug 2004
Location: Spokane WA
Posts: 738
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TelX,
Area 69? What is it?
__________________
Greg 25 gallon reef with 20 gallon sump/fuge 375 gallon reef with 100 gallon sump/fuge: under construction Over time science has shown that the simplest answers are usually the correct ones....... |
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