Xm 10,000k Se
 

Received it today ... fired it ... much brighter and less yellowish than Ushio... It gave a nice color along with my VHO-super actinic blue and 50/50 Coralife PC.

I agree, I got ine a few weeks ago but have yet to upgrade to VHO lighting so its a bit on the white side for me otherwise much brighter and my corals are growing and coloring up nicely :)

I purchased an XM and Ushio 10K 400 watt pretty much at the same time almost a year ago. I would have to agree with you. The XM was brighter and whiter and now that the bulbs are near the end of their useful period I would say the XM is still better. Based on experience and price, I would prefer the XM over the Ushio

Where did you buy it from?

Got it from DIYREEF. After I purchased the bulb on line, I found out that J&L is actually carrying XM bulbs (just not on their website)

J&L have the XM's posted on their site.


http://www.jlaquatics.com/phpstore/s..._start_item=28

I have an XM 10K right now running alongside a 20K on my 75. It used to be running alone. I love the color, and the growth response I've had from corals is amazing! Very crisp white light(till it hits about the 9 month mark), then its not as crisp white, but still white, no yellowing. At about the 11 month point, it then begins to show a really crappy white, but it is still white! This is my 400W SE, running off a PFO ballast.

Cheers,

Chris

xm bulbs
 

just got my new bulbs and man they rock 10k (250)
now all i have to do is hook up my vho,s (110w) super atinics

i also just added 10k 175's and damn they are super bright. nice crisp white, not a hint of yellow. best part was 66 bucks a bulb! :mrgreen:

Just sent one back to get replaced, was really yellow, the other one was nice white, and definetly brighter, and nicer then the ushios, I had in there.

Dang it you guys. I just bought ushios and I don't even have them running yet (ballasts backordered). None of this "XM is better than Ushio" stuff!! :wink:

I have 2 72" Hamilton 3 175w and 2 60" VHO. Up until recently I was using Ushio 10K 175W and I continually had problems with firing many time I would come home only to find that 2 of the 3 have fired. I discussed the problem with the boy at J&L and Jeff told me to try the XM bulbs. I did and they were great and cheaper too, what a bargin. I find them whiter and brighter. I have since changed all 6 to XM 10000K

You said it yourself Christy! :razz:

Oh well, theres always next year :wink:

I was running Ushios last year, and switched over to the XMs too. I like the XMs better, but I didn't mind the Ushios either. Biggest factor in my choice was the price. I do recall reading the comparrison that was done in Advanced Aquarist, and the XMs came out slightly better. I do think the XM, which are 10 moths old now, are holding the colour better than the Ushios did. I will probably stick with the XMs next time, but I would like to try the 14ks instead of the 10ks.

i really think ushio shot themselves in the foot making it so they bulbs won't fire on hamiton ballasts. thats the reason i switched, now that i have seen them run i would buy them even if they would fire.

bulbs
 

If any one of you want XM bulbs I still have 4 of the 250watt brand new 15,000K for sale.

Is going to be 40% off from J&L prices and there is no tax (works out to $49)

So let me know, I can ship if you like or you can pick it up in Vancouver or Nanaimo.

Cheers

how 'bout some 400watters
lol

anyone have any comparason pics of the XM bulbs? I would say I would like a couple but the 15K rating scares me to comitt unless I know how blue they are.

Steve