Woodstock
I <3 clown fish!
Thank you for the link jlehigh.
XM 15k's are now available
- Thread starter mattseattle
- Start date
Help Support Reef Aquarium & Tank Building Forum:
RedEyeReef
Well-known member
bradreef said:
Yes, anyone know if Sanjay has one yet to test?
bradreef
always kidding
Mike thanks for the news. Now you have to get the exclusive first results here at reeffrontiers.
RedEyeReef
Well-known member
Everyone see Sanjay's results on the XM 15K? More PPFD then XM 20k and spectrum analysis looks similar to a Radium or Ham 14K.
http://www.advancedaquarist.com/2005/6/aafeature2_album/fig9-400Wxm20kcompare.gif
http://www.advancedaquarist.com/2005/6/aafeature2_album/fig9-400Wxm20kcompare.gif
Boomer
Well-known member
Here is another new test and link that compares almost all bulbs. This XM-15 really suck the big one 
Now scroll way down to the bottom of the page. You will see all the bulb names in "red". If you have Java you will get a PAR plott on each bulb. I have always liked the XM-10K
The link is on the right column
http://www.cnidarianreef.com/
Now scroll way down to the bottom of the page. You will see all the bulb names in "red". If you have Java you will get a PAR plott on each bulb. I have always liked the XM-10KThe link is on the right column
http://www.cnidarianreef.com/
Last edited:
RedEyeReef
Well-known member
Hey Mojo, have you tried an AC 14K yet? I pulled a Radium and Sun Aquatic 20K last night and put in a XM 15K and 400w AC 14K. That AC 14k is bright and if it burns in close to what it looks like now, I will be very pleased. I'm going to through my Apogee under them next week.
This is really appalling. The reason being, I ran a 20k XM SE bulb a couple years ago, and know it is less bright than this 15k XM SE bulb i'm running now.
Now I'm thinking, it may just be the lack of that higher blue spike, and that's it.
The anemones seem to like this XM 15k, though, so I may wait before doing anything.
- Elmo
Now I'm thinking, it may just be the lack of that higher blue spike, and that's it.
The anemones seem to like this XM 15k, though, so I may wait before doing anything.
- Elmo
Its weird I put a apogee meter under the radium and the 15k when I first got the 15k and it had a higher par value then the radium, now I just redid it and its lower??? That would be after 2 weeks of burn in.
Redeye The ac seems to have a bit more more par then the radium 147 to 170 in the 400 watter. Spikes look pretty close, looks like thiers more violet/uv in the AC, that might have some neat results. Have you run the 14 k's yet??
Mike
Redeye The ac seems to have a bit more more par then the radium 147 to 170 in the 400 watter. Spikes look pretty close, looks like thiers more violet/uv in the AC, that might have some neat results. Have you run the 14 k's yet??
Mike
Boomer
Well-known member
Maybe you guys are getting you apogee confused with periagee:lol:
Elmo, when you say bright do you mean what your eyes sees ?? A 20K may very well appear less bright than a 15K, as it has more blue and you do not see blue that well.
Elmo, when you say bright do you mean what your eyes sees ?? A 20K may very well appear less bright than a 15K, as it has more blue and you do not see blue that well.
Yup boomer. The 15ks just seem brighter overall to my eyes than the 20k XMs I had a couple years ago. I have to remember that color doesn't really necessarily mean its directly related to PAR, because from Sanjay's tests, it seems that the 15ks put out less PAR than the 20ks, even though the 15ks seem 'brighter'.
Now i'm a bit confused, but the anemones like it so far. Burning 8-9 hours daily.
- Elmo
Now i'm a bit confused, but the anemones like it so far. Burning 8-9 hours daily.
- Elmo
Boomer
Well-known member
A reason to run out and a buy a good light meter Actincs actually look really dull, to us on a light meter but to a apogee meter another issue. Purple light puts out almost twice as much energy as red light.....think calories ;D Red light also hard to see right. Our eyes are set to 420-440 nm, same as a light meter (lux/ftc). The best light bulb that duplicates a reef is the Iwasaki 400 w MH.
Actincs actually look really dull, to us on a light meter but to a apogee meter another issue. Purple light puts out almost twice as much energy as red light.....think calories ;D Red light also hard to see right. Our eyes are set to 420-440 nm, same as a light meter (lux/ftc). The best light bulb that duplicates a reef is the Iwasaki 400 w MH.
Last edited:
Similar threads
