whats the deal with these cheap qb288 board's

Discussion in 'LED and other Lighting' started by cobber, Mar 7, 2018.

  1.  
    cobber

    cobber Member

  2.  
    nfhiggs

    nfhiggs Well-Known Member

    The "deal" is that they are not made by HLG, they are Chinese copies. They in fact, may or may not have LM561C S6 bin diodes. You take the risk of potentially not getting what you are being sold.

    If you want a more affordable alternative to the HLG boards, stay away from Ebay and Alibaba, and just get genuine Samsung F-series strips.
     
  3.  
    nc208

    nc208 Well-Known Member

    That sellers flipped a ton of boards regardless. 61 sold and 9 available. Apparently there's money in reflipping these Alibaba boards. The name kinda implies there infringing on hlg's name though.
     
    Stephenj37826 likes this.
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    CobKits

    CobKits Well-Known Member Rollitup Advertiser

    well it is two common words.. that adequately describes the product of "horticultural lighing" so theres not much they can do really
     
    Stephenj37826 likes this.
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    1212ham

    1212ham Well-Known Member

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    CobKits

    CobKits Well-Known Member Rollitup Advertiser

    At Atreum Lighting, we are focused on delivering high-quality products and an amazing customer experience. We design our LED boards* and work hard to source the best components available. We have quality checks throughout the manufacturing process; in fact, every light passes a power-on quality check before it leaves the factory**.


    *"design" = copy other people's design

    **your diodes of unknown quality are guaranteed to turn on
     
  7.  
    Lucky Luke

    Lucky Luke Well-Known Member

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    nc208

    nc208 Well-Known Member

    Well at least Roget made a better display sticker without the spelling mistakes. I paid 7 bucks a strip direct from Roget and this clown is charging people 20 bucks a strip and its literally in the same packaging roget sends it in.
    [​IMG]

    vs what I got in August.
    20170831_144804.jpg
     
  9.  
    cobber

    cobber Member

    how would i go about getting a heatsink ? It seems that for the most part everything is out of stock
     
  10.  
    nfhiggs

    nfhiggs Well-Known Member

    With strips you generally don't really need a heatsink unless you run them pretty hot. Most of us just use 3/4" or 1" aluminum channel.
     
    Rolla J likes this.
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    cobber

    cobber Member

    i am talking about the 288pcs boards basically a copy of the hlg 550 obviously i would love to buy the premade heatsink im just not finding anything thats in stock
     
  12.  
    CobKits

    CobKits Well-Known Member Rollitup Advertiser

    rshackleferd likes this.
  13.  
    cobber

    cobber Member

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    Rolla J

    Rolla J Well-Known Member

    Know of Any manufacturer that produces just the shell casings like that? Forget them "cobs" and switch em out.
    100%. Nailed it
     
  15.  
    nfhiggs

    nfhiggs Well-Known Member

    Take a look at the 7.984 profile from HeatsinkUSA - $1.44 per inch. A 24" piece long enough for two QB288 boards would be under $35.
     
  16.  
    CobKits

    CobKits Well-Known Member Rollitup Advertiser

    @Rahz does
     
    Rolla J likes this.
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    nfhiggs

    nfhiggs Well-Known Member

    I believe they also have machining services as well so you can have it drilled to your specs.
     
  18.  
    conversekidz

    conversekidz Active Member

    If you have any sort of air movement (aka a fan) blowing on your light fixture, you do not need to purchase heatsinks...plate aluminum will work fine.

    You can purchase 1/4" plate for less than $7 a square foot....600mm x 600mm (short of 24x24) would cost you roughly $28.
     
  19.  
    Sanitas Vibrationum

    Sanitas Vibrationum Active Member

    I would say "will not be" instead of "may or may not have"
     
    Stephenj37826 likes this.
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    cobber

    cobber Member

    i am sorta confused i have already ordered a used hlg 550 on ebay and really it would be nice to get a 2nd light on the cheap that like i put in is obviously made to do exactly what i am looking for and seems to be a great price is that not something thats very really available ? i know i can do other things for a heatsink but i really like that option otherwise it makes sence to make one from a plate of aluminum in my eyes idk i can drill and tap if need be but it seems like that option would actually cost a bit more



    (https://horticulturelightinggroup.com/collections/diy/products/slate-4-quad-plate)
     

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