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Thread: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

  1. #1

    Default 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Finally mounted all 5 of my LED lights. Each fixture has a 7 watt 2700k led for low lighting and an extra kick for CRI. Also they have 47 watts of bright 5600k light.
    All added up, 270 watts are consumed lighting up this 100' * 60' area of my yard. There is some light spilling in the rest of the yard, but LEDs allow you to direct most of the light where you want. You can see the very sharp cut off at the edge of the yard in the first two pics.

    [IMG] 008 by egghead2004, on Flickr[/IMG]
    [IMG] 012 by egghead2004, on Flickr[/IMG]

    The cut off isn't so drastic on the other side, but there is minimal spillage.

    [IMG] 014 by egghead2004, on Flickr[/IMG]



    I had to back way up to get all 5 in the shot here. Also gives a good idea of the target area.

    [IMG] 016 by egghead2004, on Flickr[/IMG]

    It's all low voltage wiring so no safety or legal issues. The drivers are mounted in my shed. I'm going to hook up some 24 volt relays so I can turn the lights on individually from inside the house.<br><br>All added up, there is about 22,000 lumens running at 270 watts including the drivers, not bad.


    PLAY BALL!!!

  2. #2

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Nifty. Assuming the pics are a decently accurate rendition of how the eye perceives the scene, that's an impressive amount of light for relatively little power - and lower maintenance than conventional AC-powered technologies.
    I apologize that this letter is so long; I did not have time to write a short letter

  3. #3

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Just a bit more info... these are hand crafted fixtures, not anything retail or mail order. I made them myself, although crude looking, they are efficient. They are not over driven and under thermal protected. I have added more thermal conductive properties to these fixtures than my LED driveway lights I put up 18 months ago. Which are running at 1.4A and have over 6000 hours of running time so far.

    These are all Hand held shots on auto focus from my Canon HD video camera.
    In the third picture, there is a 100W equivalent CFL (27 watts really) in the office all the way to the right. I forgot to shut that off.
    On the left in the kitchen is just a ecosmart 65W equivalent LED dimmed down a bit.
    These are pretty accurate as for lighting.

    I think the last shot in my post really gives an accurate perspective. If there was any over exposure, the stairs on the deck as well a the grass in the foreground would really be more illuminated. As it is, it is pretty dark, but the target area in the background is well lit.

    Here is a pic of just the five 2700K lights on, about 3900 lumens in the same space, the camera can't show the light, but it is plenty to see and walk around in.
    You can barely make out the pink ball.
    [IMG] 005 by egghead2004, on Flickr[/IMG]

    Anyway, we're going to have some fun this year at night. We've always been starved for light playing volleyball, wiffle ball, and bocce.
    I used to have three 65 watt CFL flood lights out here, there is no comparison, the LEDs blow the CFLs away.

    No more squinting, it's clear and bright out there now!
    Last edited by egghead2004; 03-22-2012 at 11:45 PM.

  4. #4

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Awesome. I wonder how long it will be before stadium lighting is replaced with LEDs?

  5. #5

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    I've been playing with some projects with the newer Bridgelux LEDs - Their 4000k versions now have a phosphor set that has surpassed 100 lumens per watt. They're staying in the game that's for sure.

  6. #6

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Where did you get the new Bridgelux 4000ks? These 2700k LEDs are the new ones, but I couldn't get the new 5600ks so I had to use 802s running at 1.05A.

  7. #7

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    I recall I got it at Digikey.

    You need to find the emitter number on Bridgelux's site first by digging through their PDFs, which most now show efficacy fo fast reference, and then dig through either Newark or Digikey to see if they have it. Obviously there's a lot of older tech Bridgelux's still in stock.

    The jump in efficacy in the warm white is like 25-30%, which is huge.

  8. #8

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    I've spoken with Digikey, all of their notes show the product as discontinued by the manufacturer.
    Not sure what is going on, I bought some last fall.

  9. #9

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Thats very impressive there.
    Im using the newest 9000 series RS arrays (4) for my project. using around 500 watts on 4 arrays and about 50w for the fans coolng my sinks. About equal to 4 400watt HID lights.

  10. #10
    Flashaholic
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    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Do you have any pictures of the units themselves? I am in the process of building myself soem outdoor lighting as well and am aiming for around 15,000 lumens. I have the idea for the fixtures already built out, but curious to see how yours were made.

  11. #11

    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    The units are made from 2 1/2" * 1 1/2" aluminum U channel. 1/8" thick and 30" long. I used an epoxy to put the end caps on, then silicone for the plexiglass cover.
    For the mounting/junction box I used 6" of the U channel, again with the end caps epoxied to the U channel. Then Bolted the 6" box to the back of the 30" U channel. Drilled a 3/4" hole and used 1/2" conduit connector to run the wires through and down the conduit. The Conduit is clipped to the trees. I've also epoxied some more aluminum to the back of the unit to remove more heat.
    [IMG] Aluminum light fixtures. by egghead2004, on Flickr[/IMG]

    [IMG] Stadium light by egghead2004, on Flickr[/IMG]

  12. #12
    Flashaholic
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    Default Re: 6000+ sq/ft lit up with 22,000 lumens by Bridgelux LEDs

    Nice. I'm doing something very similar. 3x3 inch alumininum C Channel, 15 Cree XT-E's in 4300 70 CRI and a Recom RACD60-1050/IP76 driver. For a reflector i'm using some metal stove pipe to make a nice wide flood. I'll post pictures up in a few weeks once i get there.

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