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XM MH bulbs

Printed From: Utah Reefs
Category: Specialized Discussion
Forum Name: Equipment
Forum Description: This is the place to ask question about reef equipment.
URL: http://www.utahreefs.com/forum/forum_posts.asp?TID=2869
Printed Date: July 05 2026 at 12:50am
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Topic: XM MH bulbs
Posted By: jglover
Subject: XM MH bulbs
Date Posted: June 29 2004 at 4:06pm

Been searching the past forms and I am wondering are the XM's worth the savings in costs?  They are a good deal cheaper from what I've seen.  Where are the best places to shop?  I'm looking for a 10K 250W system and would like some input, thanks.

Jaren Glover




Replies:
Posted By: Will Spencer
Date Posted: June 29 2004 at 4:09pm
I have 3 250W HQI 20K XM bulbs and I think they are great.  Of course I've never used anything else and have only had them on my tank for about 3 months now, but my opinion still stands.  My corals do incredibly well under them.


Posted By: jglover
Date Posted: June 29 2004 at 4:11pm
Anyone know how often they should be replaced?


Posted By: seti007
Date Posted: June 29 2004 at 5:08pm

I love the ones I got about 5 months ago. i have used radiums and iwasakis but like the look of XMs the best. Mine are 400W 20Ks from hellolights.com

Asad



Posted By: Will Spencer
Date Posted: June 29 2004 at 5:47pm

Originally posted by jglover jglover wrote:

Anyone know how often they should be replaced?

Some people say every year, some say when they burn out.  I will be replacing mine when I notice a decrease in the amount of light they put out.  I don't know when that will be since I'm new to them myself.



Posted By: coreyk
Date Posted: June 29 2004 at 6:34pm

good thread on RC about life of XM bulbs ...

http://reefcentral.com/forums/showthread.php?s=&threadid=387957 - http://reefcentral.com/forums/showthread.php?s=&threadid =387957

 



Posted By: jfinch
Date Posted: June 29 2004 at 6:49pm
For cheap bulbs also check out the coralvue bulbs.

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Jon

https://www.youtube.com/channel/UC6y_EzjI_ljbIwf2n5uNzTw" rel="nofollow - What I've been doing...



Posted By: reptoreef
Date Posted: June 29 2004 at 10:56pm
I have dual CoralVue 175 watt 12k's and they really are super!!!

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www.captivereefing.com


Posted By: jglover
Date Posted: June 30 2004 at 6:19am
coreyk that was a very helpful link, thanks.  I think I'll get the XM's and build a acrylic box around them.


Posted By: Adam Blundell
Date Posted: June 30 2004 at 9:35am

I have two 150 watt hqi XM 20k bulbs.  I like them.  The only problem I have is that they just aren't bright enough.  They probably kick out a lot of light, but being so blue they don't appear to kick out much light. 
Like I said, I have two of them on my 30 gal tank and I'm wanting to add a third or even fourth bulb. 

However, you can't beat the convenience.  I have one ballast, no extra pc or VHO bulbs and stuff like that.  Also, they are so small you can easily fit a bunch of them in your canopy.  To me, it was a great way to go, and I'm glad I did.

Adam

oh yah, I should mention my corals have much better color now that I've switched to these bulbs from my pc set up



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Come to a meeting, they�re fun!


Posted By: jglover
Date Posted: June 30 2004 at 1:21pm
I'm thinking about using my PC's for my blues anyone tried this.  It would only be 2-3 65w bulbs on a WH7.  Any ideas?


Posted By: vangvace
Date Posted: June 30 2004 at 1:26pm

Marine-aquatics down in Sandy may have the hardware if your into DIY.

My 150W hqi 10k XM pendant system just arrived from hellolights.com today.



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McGuire AFB, NJ

Moments of brilliance


Posted By: Kull
Date Posted: June 30 2004 at 7:00pm

I didn't really want to get involved here, but here goes...

Which bulb you really want to get depends on what you want to accomplish.

I tried the XM 20K 150 watt HQI on my tank at work (30 g reef)  and it wasn't near bright enough (Notice I agree with Adam, or he agrees with me.)  I switched the bulb to a 10k aqualife bulb, (after comparing the two side by side at the store, Thanks Shawn at Aquatica for letting me do that)  I decided to go with the 10K bulb (It is marketed as a 10 k but I hear it is actually a 13k.)

Things looked ok under just the 150 watt 10k hqi, but I wasn't satisfied, I added a 65 watt actenitic c to it and really liked the way that it looked, I ahd another pc fixture laying around and put a smart bulb in(pink and blue)  I don't think I have ever liked how much my tank looks as I do right now, it is AWESOME!

What it all comes down to is what you like, I don't like the 20k blue look, I prefer more white and bright, others really like the blue look.  AS for the XM bulbs, well that is something you will have to decide, as for me, I think that you get what you pay for.

You are more then welcome to swing by and have a look at my tank.  If you are going with a 10k bulb, I would for sure add some blue in, otherwise the greens get washed out a little.

Good luck with it.

 



Posted By: Will Spencer
Date Posted: July 01 2004 at 11:25am

It really is a good idea to look at tanks with several different bulbs.  Marine Aquatics has, or at least had, a setup with a 20K on one side of a tank and a 10K on the other so you could see the difference.  This is very helpful in my opinion.

I'll also agree with Adam on the color of the corals.  I noticed it most on my Green Nephthia.  Under NO's and PC's it looked like it had some green in it.  After being under the 250 watt 20K HQI's for 3 months now it glows green.  Very, Very, cool.



Posted By: Marine-Aquatics
Date Posted: July 01 2004 at 12:39pm
we still do have both a 10k and a 20k XM  bulbs running for a customers to compair.

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7563 S. Main St (700 west)
Midvale
(801)536-0600
Open Mon-Fri 11:30-8pm
Sat 11-8
Sun 11-4
After hour emergency
(801)563-0600


Posted By: jglover
Date Posted: July 01 2004 at 2:26pm

Thank you marine aquatics there prices were actually $5 more than hellolights, but no 10$ shipping cost or waiting.

wsinbad1, one reason I want MH is jfinch gave me some greenstar polyps these.

As you can see they are brown, as brown can be.  whereas the day before they were "glowing" green!  See jfinch's tank to compair.



Posted By: Adam Blundell
Date Posted: July 01 2004 at 2:44pm

I have those exact star polyps from Finch as well.  I've had them in my tank under two 150watt 20k halides.  Mine are as brown as brown can be.  Well, I take that back.  Mine are as tan as tan can be. 

Jon told me they were green in his tank as well (not that I believe him ) but with the 7 types of green stars I have in my tank, they are the only colony that doesn't look green.

Adam



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Come to a meeting, they�re fun!


Posted By: ssilcox
Date Posted: July 01 2004 at 2:47pm

Well here is an interesting thing to note then. The frag of galaxia that I got from Jon were brown in his tank, but an awesome green in mine. Wierd.

I am running 2x150 DE 20k ushios with 110w 10k & 110w Actinic



Posted By: jfinch
Date Posted: July 01 2004 at 3:16pm

Adam... Glowing green in my tank  (and I think they're actually an encrusting gorgonia)

Shane... Curses!  It's still brown in mine.



-------------
Jon

https://www.youtube.com/channel/UC6y_EzjI_ljbIwf2n5uNzTw" rel="nofollow - What I've been doing...




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