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XM 20K Single End Bulb

  • XM250w, dimmer than Radium, only slightly bluer By vanisher on 7/3/13

    I purchased this bulb to replace my radium as it was burning my SPS under my lumenmax elite reflector.

    So far it's dimmer and the corals seem to be coming back. My goal was to get slightly bluer than the radium so I would not have to supplement actinic.

    Unfortunately I think I will still have to supplement, but for now it's meeting my requirements.
  • Exactly what i was looking for By Holyreefer on 2/17/13

    I switched about 5 years ago to 20k from 10k
    10k was way too yellow for my liking
  • great color By Thomas on 1/8/13

    I have two of these on one of my tanks and they are great. perfect coloring of my corals and doesnt emit to much heat. makes the coral colors pop out. and these bulbs are a decent price for what you get.
  • Great Bulb By Steve on 5/29/12

    I have had this bulb over my 50 gal breeder tank with great results. My SPS is growing at a good rate as well as my softies. The tank look great.
  • Excellent Bulb for the money By John on 3/2/12

    Great colors and great growth from this bulb with a nice blue tint to it.
  • Great Bulbs By UVAThomas on 1/16/12

    I love these bulbs. They bring out the colors in all my corals and fish. They are also a great value. The best price I have found anywhere in the web.
  • Excellent Choice By 1leftygolfer on 10/22/11

    I replaced a couple of 14K "U" branded bulbs which I had been using for the past 8 months. Switched over several weeks ago. Several differences: 1. Of course, a much bluer tint which makes the colors pop. We prefer the color rendering. 2. Bulbs are longer than the previous brand, which for our hood/reflector doesn't really matter, but if you have confine spacing, might want to verify. 3. Surprisingly, these bulbs run cooler than the "U" brand. I haven't actually measured the temp differences, but when cleaning my tank I noticed the significant lower temp emitting from the bulbs. So, far I can't complain, but ultimately coral growth will be the determining factor of success.

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