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    Philips Fortimo line - comparison shots -vs- fluorescent

    A few weeks ago Stephen Lebans sent me some links regarding Philips Fortimo LED line as we brain-stormed products and potential DIY options for green house applications. The LED products "specified" for this application are so thick with marketing and hype you practically need a shovel to cut...
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    Bridgelux powered concept lamp

    This is a design I've had rumbling around in my head for a couple years, and threw it together this weekend out of spare parts I had laying around. Every once in awhile something actually works as you plan it in your head - this was one of those rare times. I used a Bridgelux BXRA-40E0950-B-00...
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    Easy Bridgelux DIY

    Wakefield has some pretty nice anodized Heat Sinks they've spec'd specifically for big Bridgelux emitters, although there's certainly nothing preventing you from using them with triple stars or cranked-up XM-L's. The best thing about radial heatsinks is they can work in either up or down...
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    White -vs- blue LEDs for plant growth

    A few months ago I converted some of my DIY growth lights from XT-E royals to XP-Gs, mostly for aethestic sake. Royal Blue and Orange-Red might be good for plants, but 30watts of XT-E are obnoxious, even in another room with a monochromatic, radioactive purple glow that after awhile drives you...
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    White -vs- blue LEDs for plant growth

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    LED Street lights - getting better

    I noticed lately that a new style of LED street light was popping up in a local town, and these were quite a bit different than the ones I've seen deployed in other areas. It's also the first large scale roll-out I've seen of the LED fixtures used for several miles of roadway. First thing I...
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    Fun XM-L 'spotlight' project

    I've been itching to build something ridiculous with XM-L's, and had a chance this past week when I found a need to build replacement spot light for a light show I've been polishing up. I have a huge area to fill, and one of the owners likes the classic disco ball for a retro look, but lighting...
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    60watt Phlatlights in DJ lights

    This was a cool picture I took this weekend of my nephew bowling under the light system I installed for Glo-Bowl at a bowling center. Hey, you guys like beam shots :thumbsup: The light on the left is the Phlatlight based scanner while the light on the right is a 150watt HTI based Martin EFX...
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    Need creative ideas for measuring LED intensity

    Since I don't have a spectrometer I've been trying to come up with a way to measure relative intensity levels between specific LEDs that has little bias in regards to spectrum as possible, and drawing a blank. Dealing with a lot of large reef tank builds and the sheer volume of offbrand LEDs I...
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    Osram Ostars in a MAC Aura

    Well, I think I've found the sole entry for my Xmas wish list. Probably won't get one, but watching the video at the bottom is almost as good. Love the optic they designed for that thing: http://www.martin.com/product/product.asp?product=macaura No that's just purdy folks. LED's are slowly...
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    High CRI freaks - check this out.

    When I first saw this product brief from Bridgelux I had my usual cynical skepticism you all, well, know and love me for. :wave: Then I looked at the actual spectral graph....then I read it again....then another double take. Yeah, 97 CRI. Look at the red plot and how deep it gets. As for...
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    What's the tightest, hardest 'edge' optic for the XP-E?

    Thought about throwing this in the flashlight forums, but I've no idea which one. Anyways, what's the tighest angle / hardest spot optic or reflector for the XP-E that is a reasonable price and isn't much bigger than 20mm? I need to build some clusters of effect lights, and my current...
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    Bridgelux also workin' the press release gig

    All these amazing 'efficiency breakthrough' press releases would probably sound more convincing if narrated by Don Lafontaine; the guy with the ominous voice who narrates most movie trailers. :grin2: Anyways, Bridgelux has been busy and it seems they've finally broken the 'metal halide'...
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    So, how good is dSLR video?

    I realize most of us are still shooters, but with video capabilities in most digital cameras and many short films being shot on dSLRs just how good are they? I ran into this link over at Zacuto, and it's a very detailed, un-biased real world comparison of Canon and Nikon dSLRs -vs- state of...
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    Stargate Universe - is good Sci-Fi now dead?

    Or, a better topic should be 'another one bites the dust'. I started watching SG-U when it first rolled out, and like most people was a little shocked at how different it was than the often campy but fun SG-1, or ridiculously bad Atlantis. SG-U was much darker, edgier, and seemed to take a lot...
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    Ok, if it's too good to be true....

    While looking for constrant run green lasers for the light show I support I ran across this: http://www.o-like.com/index.php?main_page=product_info&cPath=9&products_id=97 Now the fun part is figuring out what's wrong with it because the price is insane. Tempted to buy it because the power...
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    Toshiba 'E-Core' LED bulbs

    Saw a couple of this on display at a local home improvement store, which had them on sale for $15.00 and not many were moving. Stated 7-watts or something on the side..... The warm-white and cool-white actually had pretty good color respectively. The warm was actually quite 'incan-ish' and the...
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    Are Carnivals "fixed lighting"?

    Feeling a bit bored, I stopped at one of the seasonal carnivals that show up in your local mall parking lot a few times a year hoping to grab some long exposure shots of the carnival lights with my camera, and get my 10 year Crisco intake of elephant ear. I was standing directly behind the...
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    New LED retrofits in the news...

    First, my favorite. Philips new 'EnduraLED'. http://www.ledsmagazine.com/products/22417 Somebody in engineering might want to book a conference room and have a meeting with the marketing guys. Basically, I see a bit of unintended humour calling the bulb 'Endura' when it lasts for 25k hours...
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    Cops and LED lights and color rendition

    Saw my first city cop last night with an LED based torch. Previously the only things I've seen local cops cary are a mix of standard incans and HID, but this guy had a insanely bright LED torch. Basically it was two cops pulling over some kids in a 'burgandy' Mustang in front of my house, and...
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