XM 20Ks

bruffin

New member
Is anyone using these on your LPS tanks? Show me some pics please . . . How do you like the color? Do they look better than the 15Ks?
 
I had 2 175w 20k XM's on my 46g - I loved them. No need for actinics, just enough blue to suit my tastes.

tank030105.jpg



Try this site - you can scroll through and see combinations of different bulbs next to each other - really helpful IMO.
http://metricksystem.com/chris/250wcolour/
 
im using 250w xm20k's right now and love them. i use them on an m58 ballast and the blue isnt overwhelming like some discribe, its just about perfect for my taste.
 
From what Ive seen the ballast you use makes a big difference, at least visually. The magnetic ballasts that Ive seen with these bulbs make them slightly a more white blue light as if slightly being overdriven. While the same bulbs on an IceCap ballast the light appears much more of a richer blue.

Im using a 175w magnetic ballast w/ a different brand of 20k and it looks more like 14k than a 20k.Id love to see an electronic ballast fire this same bulb to see if its a universal thing goin on.

-Justin
 
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