Jeramy Posted May 24, 2016 Share Posted May 24, 2016 Hey I am not very familiar with DIY LEDs but I am toying around with a UV spotlight to target a Zoa garden on my new tank build and am contemplating using this 20w uv matrix led but am not entirely sure what driver and power supply I need to run it. I was thinking about attaching it to a cpu heat sink and fan to keep it cool and making a custom housing for it. http://www.ebay.com/itm/20W-High-Power-LED-UV-Light-395-405nm-50LM-Ultra-Violet-LED-Chip-Bead-Bulb-Lamp/112005896068?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3D0193b39519b94ab7bcfc46d64e83ddc6%26pid%3D100338%26rk%3D15%26rkt%3D20%26sd%3D222070355324 I have a 80* optic for it like you would see on a kessil . I know we have some talented folks on here in regards to the DIY Led builds and this is all new to me and when I started to research drives and such there were so many options that it was crazy town out here. Thanks for your feed back. Quote Link to comment Share on other sites More sharing options...
TheClark Posted May 24, 2016 Share Posted May 24, 2016 Check this out Jeremy, 13 bucks and ready to go. It's worth at least trying for that price: http://www.ebay.com/itm/152050931365?_trksid=p2057872.m2749.l2649&var=451249868253&ssPageName=STRK%3AMEBIDX%3AIT I have one I have been moving around in the tank to try over different corals just for fun. 1 Quote Link to comment Share on other sites More sharing options...
Matteo Posted May 24, 2016 Share Posted May 24, 2016 why do you want to do this? Quote Link to comment Share on other sites More sharing options...
danlu_gt Posted May 24, 2016 Share Posted May 24, 2016 I have a 30w 395nm UV already mounted on heatsink plus some basic drivers. I used it for my first DIY led project. Or if you just need the drivers, let me know. Sent from my SAMSUNG-SM-N900A using Tapatalk Quote Link to comment Share on other sites More sharing options...
Matteo Posted May 25, 2016 Share Posted May 25, 2016 anything under 410nm does nothing for growth and hardly anything for color. Actually anything under 400 is "UV" while anything between 410-430nm is Violet. Violet is what you really want. Violet (410-430nm) is great for growth. 1 Quote Link to comment Share on other sites More sharing options...
danlu_gt Posted May 25, 2016 Share Posted May 25, 2016 This is a great article about different wavelength light on coral photosynthesis. It's a bit hard to digest with first pass...look at table 10 and 11 about UV under 400nm. http://www.advancedaquarist.com/2014/5/aafeature Sent from my SAMSUNG-SM-N900A using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
badxgillen Posted May 25, 2016 Share Posted May 25, 2016 If you actually experiment with UV you would find that some zoanthids will gain some colors that would not have been there unless they had been exposed to the extra UV, this is applicable to some other corals as well. So listen and learn, no one knows it all they just think they do. Preach on Brother Danlu! And thanks for the link Clark. 2 Quote Link to comment Share on other sites More sharing options...
Matteo Posted May 25, 2016 Share Posted May 25, 2016 like I said earlier (and so does the article) aim for 400-420nm range Quote Link to comment Share on other sites More sharing options...
goldenbasketreef Posted May 26, 2016 Share Posted May 26, 2016 I think OP is not asking for an opinion. Op just asking how to do a UV spotlight for whatever purpose he is trying to do. Jeramy, the brand on ebay should be good for your experiment. If you need more accurate spectrum you can go with individual diodes from semileds Just remember you will not be able to drive this uv diodes more than 700ma, for the one on ebay 500ma should be about max I think. You will not optics since true UV will degrade plastic optics. Let it run bare or using reflector set up like the link the clark posted here. Quote Link to comment Share on other sites More sharing options...
Matteo Posted May 26, 2016 Share Posted May 26, 2016 I think OP is not asking for an opinion. Op just asking how to do a UV spotlight for whatever purpose he is trying to do. Jeramy, the brand on ebay should be good for your experiment. If you need more accurate spectrum you can go with individual diodes from semileds Just remember you will not be able to drive this uv diodes more than 700ma, for the one on ebay 500ma should be about max I think. You will not optics since true UV will degrade plastic optics. Let it run bare or using reflector set up like the link the clark posted here. No opinion was given, it was all fact Quote Link to comment Share on other sites More sharing options...
Jeramy Posted May 26, 2016 Author Share Posted May 26, 2016 Thanks for all the input it is much appreciated. I plan to experiment with addition UV light on my Zoanthids in particular and see how the and or if they change maybe have a it pointed at the Zoa garden and then take several frags and place them in the same system but not under the uv and see where it goes just for fun and curiosity and if it costs me less than 30 bucks to mess around with should be fun =) 1 Quote Link to comment Share on other sites More sharing options...
Matteo Posted May 26, 2016 Share Posted May 26, 2016 Thanks for all the input it is much appreciated. I plan to experiment with addition UV light on my Zoanthids in particular and see how the and or if they change maybe have a it pointed at the Zoa garden and then take several frags and place them in the same system but not under the uv and see where it goes just for fun and curiosity and if it costs me less than 30 bucks to mess around with should be fun =) if you are going to do this your light needs to have an optic so it doesn't spread to the others Quote Link to comment Share on other sites More sharing options...
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