http://www.utahreefs.com/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Tue, 09 Jun 2026 07:55:57 +0000 Wed, 01 Mar 2017 10:21:57 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.03 360 www.utahreefs.com/forum/RSS_post_feed.asp?TID=82010 http://www.utahreefs.com/forum/1by1.gif http://www.utahreefs.com/forum/ http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622747&title=led-build-questions#622747 Author: Seth
Subject: 82010
Posted: March 01 2017 at 10:21am

Once they are done I will be pulling the atinic out and putting the coral+ back in. Only traded then so my colors weren't so washed out. ]]> Wed, 01 Mar 2017 10:21:57 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622747&title=led-build-questions#622747 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622746&title=led-build-questions#622746 Author: Seth
Subject: 82010
Posted: March 01 2017 at 10:20am

That is all great advice! Hopefully I get some time tonight to really look through all the options. So I can get them done and get that blue look and color pop back ]]> Wed, 01 Mar 2017 10:20:41 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622746&title=led-build-questions#622746 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622739&title=led-build-questions#622739 Author: Krazie4Acans
Subject: 82010
Posted: March 01 2017 at 8:22am

Seth wrote: Phys- It would be a 4 hour drive to come down for the meeting lol a little to far. Theven board has 2 power channels with a led display and control panel. Krazie4acans- the current leds look the same as the bridgelux but when I was looking on amazon I found the same style but pretty sure they were chinese bulbs. Are Chinese bulbs that bad or just need to be replaced more?

The Chinese ones are not "Bad". They generally have a shorter life span and their color may be in a small range instead of an actual set spectrum. This doesn't make them bad just different than Bridgelux or CREE which have pretty specific spectrum colors for each LED type. I think for your use in creating a supplemental blue LED light they will be more than adequate, plus the price of the diodes makes them a great value.

Make sure you get the polarity correct when you are putting them on because one LED in backwards will make the entire string not light up just like the broken LED did. The diodes will have one tab that is shaped different than the other. so that you can figure out which way is the correct direction. A double A battery with a couple of wires on it should light up the LED enough to figure out which side is positive.
]]> Wed, 01 Mar 2017 08:22:20 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622739&title=led-build-questions#622739 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622738&title=led-build-questions#622738 Author: Seth
Subject: 82010
Posted: March 01 2017 at 8:08am

Phys- It would be a 4 hour drive to come down for the meeting lol a little to far. Theven board has 2 power channels with a led display and control panel.
Krazie4acans- the current leds look the same as the bridgelux but when I was looking on amazon I found the same style but pretty sure they were chinese bulbs. Are Chinese bulbs that bad or just need to be replaced more? ]]> Wed, 01 Mar 2017 08:08:42 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622738&title=led-build-questions#622738 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622732&title=led-build-questions#622732 Author: Krazie4Acans
Subject: 82010
Posted: March 01 2017 at 6:52am

phys wrote: Come to the talk on Thursday! ;) Also, be aware that if you do different led colors and types, you'll either have to add resistors to each led to match their power usage or you'll have to run them on different drivers so they don't get messed up from bad power matching. If you do different colors, it would be beneficial to have separate power channels so you can dial them in separately.

This is the case with CREE LEDs but with the Chinese ones and Bridgelux ones they are all the same current rating and voltage varies by only about .4-.7 volts. The exception might be the Violet. They tend to be lower voltage.

The nice thing about these Chinese fixtures is that they use a constant current source driver. This driver maintains the current output in the LED string at the same value all the time. It also has a voltage output range of ~52-100volts DC. So a pretty wide range to handle mixing different voltage LED's
]]> Wed, 01 Mar 2017 06:52:00 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622732&title=led-build-questions#622732 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622728&title=led-build-questions#622728 Author: phys
Subject: 82010
Posted: March 01 2017 at 12:40am

Come to the talk on Thursday! ;) Also, be aware that if you do different led colors and types, you'll either have to add resistors to each led to match their power usage or you'll have to run them on different drivers so they don't get messed up from bad power matching. If you do different colors, it would be beneficial to have separate power channels so you can dial them in separately. ]]> Wed, 01 Mar 2017 00:40:20 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622728&title=led-build-questions#622728 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622721&title=led-build-questions#622721 Author: Seth
Subject: 82010
Posted: February 28 2017 at 10:43pm

I was told faster growth comes from the 6500k. And I think I will be taking the atinic out. Just put it in and it doesn't do much ]]> Tue, 28 Feb 2017 22:43:54 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622721&title=led-build-questions#622721 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622717&title=led-build-questions#622717 Author: Krazie4Acans
Subject: 82010
Posted: February 28 2017 at 9:43pm

My personal choices for T5's would be to get rid of the 6500k and the actinic and put another Blue+ and a coral+ in their place.]]> Tue, 28 Feb 2017 21:43:17 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622717&title=led-build-questions#622717 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622715&title=led-build-questions#622715 Author: Seth
Subject: 82010
Posted: February 28 2017 at 9:30pm

My t5 combo is 4 blue+ 1 coral + 1 purple +, a 6500k, and a true atinic (not digging it) but I'll look into other blues ]]> Tue, 28 Feb 2017 21:30:25 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622715&title=led-build-questions#622715 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622712&title=led-build-questions#622712 Author: Seth
Subject: 82010
Posted: February 28 2017 at 9:28pm

Haven't pinned down any exacts yet. Lots of choices lol. ]]> Tue, 28 Feb 2017 21:28:32 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=82010&PID=622712&title=led-build-questions#622712