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  • 1.  LED Alternatives To Gallery Lamping?

    Posted 10-08-2014 09:18 AM
    Has anyone out there found an acceptable LED alternative to halogen/incandescent Par lamping for lighting exhibit galleries? We're in the process of an institution-wide "green" lighting project, but gallery lamping remains the one area where we haven't quite found the right replacement. Throw distance isn't so much the issue any more, but rather color temperature and spread. If you're leery of sharing specific products in this forum, please feel free to contact me directly. Thanks for any tips you can provide. ------------------------------------------- John Wharton Managing Director - Facilities Saint Louis Science Center Saint Louis MO john.wharton@slsc.org -------------------------------------------
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  • 2.  RE: LED Alternatives To Gallery Lamping?

    Posted 10-09-2014 09:31 AM
    John,
        I've been integrating LED's and Lighting controls into our galleries for the past 4 years.  Color has always been challenging.  I did find a couple that we use for different applications.  I would get some samples from your distributors to test in your space.  See my list below on what has worked for us.  

    Exhibit space (General Lighting or highlighting a larger section on the wall or floor)

    Philips Endura BR40 90 degree Flood - Dimmable - 3000k
    TCP LED14P38D30KFL 40 degree Flood - Dimmable - 3000k

    Spots
    CREE LRP-38 - Excellent color but very bright.  They have a dimmable version now

    Case Lighting
    CREE Troffers with Lutron dimming controls
    Luxam - LED Illuminators with end - Very nice and elegant design.  A little pricey but worth it in some applications


    I'm also a DYI kind of guy so I do build my own lighting depending on the situation and needs (Mostly for Cases)

    I've found through trial and error that the lighting controls really help with conservation of the artifacts and electrical savings overall so it's a win-win situation.  Your costs will be higher up front but you'll save on maintenance, HVAC, and energy costs.  I would recommend that you check with your Electrical provider also to see if they have any rebate programs.  PPL in our area will give $5 per bulb replacement and $30 for each sensor (Which almost pays for the sensors!)

    Hope this is helpful.  If I can help in any other way shoot me an email and I'll send you my phone number and we can chat.  I'm always willing to share my knowledge with others to help them save as well.

    -------------------------------------------
    Alan Byler
    Media Specialist
    State Museum of Pennsylvania
    Harrisburg PA
    rbyler@pa.gov
    -------------------------------------------


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  • 3.  RE: LED Alternatives To Gallery Lamping?

    Posted 10-11-2014 05:35 PM
    Alan, I may not have been clear on my advice to you on LED lighting. Although I am a museum trustee emeritus, and have followed the conversion of lighting in the galleries of a museum (not mine) with LEDs, I do not feel comfortable with the color chosen, which was 2700 and which in my opinion cats a warm yellowish light on the works of the galleries, and which temp was rejected by the experiments a couple of years ago when the Rijksmuseum in Amsterdam chose LED lighting for the famous "Night watch" painting by Rembrandt. I'm not sure what temperature they finally chose (I think it was a Phillips bulb) but it certainly was not a temp of 2700. Assuming it was not quite daylight (5000 or 6000k), it may have been in the 3 to 5000 range. but why don't you contact them for exact information, I'm sure their (expensive and exacting) research should give you some more precise answers. In my own case what I have some experience with is in lighting black and white prints (mostly 15th and 16th century) using Cree 6000 K bulbs, which heighten the contrast between black and the color of the paper, which should not have a yellowish, warm cast, although warmer colored objects including oil paintings and such do not need such a high Kelvin. My opinion only. Pardon if this is too non-academic. John
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  • 4.  RE: LED Alternatives To Gallery Lamping?

    Posted 10-13-2014 10:16 AM
    Hello, The MIA underwent a transition to LED a couple of years ago. I wasn't working here then so I don't have any firsthand knowledge to share, but our Design and Editorial team put together a fantastic story about it in our Verso digital publication, bits of which might be useful. You can read the story here <http://contentviewer.adobe.com/s/Verso%20Magazine/032c48920fdf48f9809bf91de9afb345/FALL%202013/Light.html>. Good luck! ------------------------------------------- Courtney Algeo Brand Communications Specialist Minneapolis Institute of Arts Minneapolis MN -------------------------------------------
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  • 5.  RE: LED Alternatives To Gallery Lamping?

    Posted 10-13-2014 02:21 PM
    I would suggest you join the International Association of Lighting Designers group on Linkedin. There you will have the opinions of lighting professionals worldwide. ------------------------------------------- Lawrence French Principal Auerbach Glasow French San Francisco CA -------------------------------------------
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  • 6.  RE: LED Alternatives To Gallery Lamping?

    Posted 04-02-2015 01:04 PM

    Hello,

     We've done quite a few gallery re-lamp projects here. Seattle City Light offers a generous reimbursement program. I have found several lamps that work for the smaller fixtures (PAR 20, some MR16, A19) but in general we have struggled to find a really good replacement for the long throw fixtures (PAR64, Source 4).

    I have a few recommendations for small fixture replacement lamps and they include any of Philips LED line and Cree. Most of our PAR 20s are Toshiba LEDs but it sadly looks like they disbanded their LED lighting division. They had the best dimming performance I've seen. We've also had great reliability with the Sylvania LED tape light. I've tried the superbrightleds.com version of tape light and it works for a short while. It is much cheaper however so if the labor/investment equation works out for your organization they can be useful short term.

     I am wondering if anyone has seen a really great long throw LED fixture. I have been looking at LSIs Super Spot series (http://www.lightingservicesinc.com/product.asp?productID=219) and Philips eW Reach Powercore (http://www.lightingproducts.philips.com/our-brands/color-kinetics/ew-reach-compact-powercore.html) but both of these are very expensive and have some limitations. Has anyone found something similar out there? We have a gallery that has throws of 40-60'.

    I did just join the IALD group-thanks for the great suggestion!

    ------------------------------
    Melissa Snyder
    Tech Services Manager
    Museum of Flight
    Seattle WA

    msnyder@museumofflight.org
    ------------------------------


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  • 7.  RE: LED Alternatives To Gallery Lamping?

    Posted 04-06-2015 12:57 PM
    We have track lighting in our 3 galleries, and have recently been switching out all the old incandescent and halogen bulbs with 16-watt LEDs, for the most part.  Sylvania, I think.  Brighter and whiter in appearance, but they're all dimmable, and should save us a lot of money over time.

    ------------------------------
    James Mackay
    Director
    The Lyceum
    Alexandria VA
    ------------------------------


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