#1
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LEDs - Well, this is interesting
Recently I've been unhappy with my TMC Aquaray LED lights.
I'll post my 'issues' with these lights another day. I was not pleased so I took them down and replaced them with MarsAqua 165w LEDs. These cheap 'sh*t boxes' have a strong following over at Reef Central so I though "why not?" Now to the point: I was working in very close proximity with the AquaRay while they were on at 100% for about 2 hours. I replaced them with two MarsAqua and fiddled with them for (while lit) for about 1 hour. Then (here it comes) I also installed a Kessil A360WE my wife bought me for Christmas in between the 2 Mars Aqua fixtures. I turned it on and started adjusting it. Oddly enough it got progressively dimmer as I was working on cable management. As a matter of fact the entire tank was getting dimmer even with the other fixtures still on. WTF? So, I walked out of my fish room to get to the other side of the tank and I could barely see where I was going. Then it was obvious. My new eyeglasses with a photochromic option had gone as dark as I've ever seen them. Interesting, no? I've always heard that the Kessils have true UV emitters but this really showcased that particular claim. To reinforce this (now obvious) theory I took my glasses off and held them under each fixture at 100%. My T5s were removed so I couldn't experiment with them yet. MarsAqua - no change. Glasses stayed clear. TMC AquaRay - no change. Glasses stayed clear. Kessils - almost immediate and intense change. Glasses look like sunglasses. While this really proves nothing as to how effective these lights may or may not prove to be, I found it very interesting. As an aside, the Kessil lights also look like they are providing less illumination in the tank at 100% (with my glasses off, lol) than the other fixtures. I've read that much of their output is at wavelengths that are difficult for the human eye to perceive. I'd be interested to hear anyone's comments regarding Kessil's UV properties. Cheers
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_________________________________________ 20 year old Hagen 100g 6' mixed reef. 36g sump with multiple broken Waveline products removed. Lights T5-LED combo. 1 Coral Beauty, 1 Flame, 1 Blue Tang, 5 Green Chromis, 2 Pajama Cardinals, Asst'd hermits & snails. 2 large boxes of broken expensive aquarium crap. 1 x VERY understanding wife. |
#2
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That is certainly interesting, but I have no idea what it means.
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#3
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TLR
Kessils make your glasses go dark
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_________________________________________ 20 year old Hagen 100g 6' mixed reef. 36g sump with multiple broken Waveline products removed. Lights T5-LED combo. 1 Coral Beauty, 1 Flame, 1 Blue Tang, 5 Green Chromis, 2 Pajama Cardinals, Asst'd hermits & snails. 2 large boxes of broken expensive aquarium crap. 1 x VERY understanding wife. |
#4
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It means you need some Kessils.
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#5
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IIRC Kessil is one of few if not the only manufacturer that designs & builds their own LEDs. Been a while since I checked out their web presence, but the info is no doubt still there. They have ample reason to be proud of their product & make that known. Most other light builders use 3rd party LEDs.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build http://www.canreef.com/vbulletin/showthread.php?t=82206 |
#6
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Kessil's have UV but barely. Around 390nm or 385nm IIRC. So in my opinion it's more a marketing thing than a real "UV" advantage. What might make the Kessil work well is the amount of light being put out around that range rather than the actual; wavelength. i think the Kessil has more violet than some other fixtures. One outputting the same amount of light at 405 or 410 might well perform just as well.
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#7
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Interesting, now I have to find someone with photochromic glasses to come test my lights. I just re-configured my DIY LEDs on the weekend to have a much higher concentration of "violet" emitters. 410nm True Violet is the lowest LED, but I wonder if they would have the same effect.
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#8
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Quote:
__________________
Mike 77g sumpless SW DIY 10 watt multi-chip LED build http://www.canreef.com/vbulletin/showthread.php?t=82206 |
#9
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Great info on this thread. Convinced me to pull my Kessil A150 Ocean blue off my fw tank and attach it to my main reef to supplement the area where I'm going to try out some inexpensive SPS.
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#10
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Quote:
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