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RGB Flood Lights
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wesalbert View Drop Down
Newbie
Newbie


Joined: 04 Nov 2008
Location: FL
Online Status: Offline
Posts: 23 		  Quote wesalbert Quote  Post ReplyReply Direct Link To This Post Posted: 19 Oct 2009 at 4:36pm
You just cost me some time and money LOL
 
good find.  I hope to get 6 to 8 boards done for this years show. 
32 channels
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bdkeen View Drop Down
Beta Testers
Beta Testers


Joined: 31 Dec 2007
Location: Easton,PA
Online Status: Offline
Posts: 380 		  Quote bdkeen Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2009 at 10:00am
Chris - Dimming works good - it's slightly better than the dimming I was getting on the MR16's. There's still that low end cutoff point typical of leds  but I'm getting very smooth ramps. and they are alot brighter than MR16s and color mixes are far better. I even had to settle for the 3mm greens since the chinese ebay vendor didn't have the 5mm.  54 LEDs per board,  18 each color, 2 boards per light in the 500W housing.
 
Estimated cost was about $30-$35 per lamp for the RGB ones.. PCBs, LEDs, 500W work lamps, resistors. Work lamps at Lowes were $10 of that cost. I'm sure you could use different housings and lower the cost slightly. I used some old PS2 extensions for power making it nice having 1 wire for the 3 channels needed - then just use ps2 extension cables to fan out from the DCx16.
 
It'll be slightly higher probably for the UV units since the UV led's a a bit higher in cost.
 
Picture of the finished product can be seen at http://www.keenlights.info/projects.asp. 
 
I took some quick video of side by side comparison with a 6 bulb MR16 unit (2 red, 2 green, 2 blue) and it's poseted as well.


Edited by bdkeen - 09 Oct 2009 at 1:57pm
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ChrisL1976 View Drop Down
Beta Testers
Beta Testers


Joined: 01 Sep 2008
Location: Kankakee, Ill
Online Status: Offline
Posts: 1341 		  Quote ChrisL1976 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2009 at 8:24am
Bruce
Have you tried dimming those things?    Looks like a project I may add to my list for next year.   What was the total cost per unit?
Chris

www.lightsonsixth.com
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bdkeen View Drop Down
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Beta Testers


Joined: 31 Dec 2007
Location: Easton,PA
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Posts: 380 		  Quote bdkeen Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct 2009 at 7:16pm
I built 4 RGB units with 2 each (red, green, blue) MR16 LED bulbs. They work ok but wasn't really pleased with them especially when it came to color blending.  Decided to replace them with something better. Just finished building 2 of the replacements and tested these on a DCx16.  Very pleased with the results.
 
Ordered the PCBs at http://www.bigclive.com/flud.htm, a bunch of superflux leds from ebay, stuck 2 pcb's in a 500W portable work lamp from Lowes.
 
Since I have 2 extra pcb's I'm planning trying to make 2 UV units using UV LEDs in 100W flood light cases. Not sure where or how I might used these but seems like an interesting project.
 
If I get chance will post pics on my website in the near future
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