1. We are currently experiencing issues with viewing and uploading images, our team is working on the issue.
    Dismiss Notice

question - 500 Watt true colour led from Yuji LED ($500)

Discussion in 'LED and other Lighting' started by Puff_Dragon, Jan 11, 2018.

  1.  
    Puff_Dragon

    Puff_Dragon Active Member

    Just bumped into this video on YT. Anyone know about this led? Not sure on the construction of the heat sink (seems to have the usual 'jet engine' fan and thin fins)

     
  2.  
    canadian1969

    canadian1969 Well-Known Member

    jesus! wow lol
     
  3.  
    coreywebster

    coreywebster Well-Known Member

    Wow that's a serious piece of kit!
     
  4.  
    Randomblame

    Randomblame Well-Known Member

    If you hung that beast at least 4' above your canopy... why no?! But it's a 5000°k COB for photographer.
    The first black COB holder I've seen untill now.
    But without a datasheet it's hard to say how efficient it is.
    You can get powerful CRI97 COB's also from Citizen, Bridgelux or Luminus what means you can build a true 500w light for less than 500$. In addition, it is only a point light source which has many disadvantages (needed distance, uniformity, cooler requirements). 10 COB's á 50w (CXM22 / CRI97) would be probably more efficient, cheaper and distributes the light better.
     
    Rocket Soul and Fubard like this.
  5.  
    ANC

    ANC Well-Known Member

    10 100W 4' foot Samsung strips.... cost less than that.Ok, it is only 80CRI...
     
  6.  
    nc208

    nc208 Well-Known Member

  7.  
    canadian1969

    canadian1969 Well-Known Member

    Am I reading that right?, 143 ish L/Watt ? not too shabby, growing with it may not make sense, but damn, that is impressive in such a small package. The heat sink is comical lol
     
    DankaDank likes this.
  8.  
    Dave455

    Dave455 Well-Known Member

    5000k of quantum board at least 190-200 lumen/watt
     
  9.  
    Puff_Dragon

    Puff_Dragon Active Member

    Thanks for the info people.
    Yeah i figured it wasn't tailored for growing but what a monster eh :)
    Still, if anyone makes a youtube video of them trying to grow with this i bet they would get a lot of hits ;)
     
    canadian1969 likes this.
  10.  
    ANC

    ANC Well-Known Member

    Could make your $500 back. Give it a try
     
  11.  
    Randomblame

    Randomblame Well-Known Member

    23.000lm out of 450w sounds not so impressive. I would rather take the japanese example in CRI90...

    Screenshot_20180113-122403.png
     
  12.  
    VegasWinner

    VegasWinner Well-Known Member

    Nice video. Heat sink is crazy must be big part of cost. Light is bright wonder what the distribution looks like?
    Guy loves his purchase that is for sure.
     
  13.  
    Puff_Dragon

    Puff_Dragon Active Member

    His crazy plan to make a sun using these led's sounds interesting (for photography)
     
    VegasWinner likes this.
  14.  
    nfhiggs

    nfhiggs Well-Known Member

    23K lumen @ 500W.... no, that's less than 50 l/w
     
  15.  
    nfhiggs

    nfhiggs Well-Known Member

    Yeah, I'd be willing to bet that "Japanese manufacturer Y" is Citizen with their CLU058-3636 chip.
     
    Randomblame likes this.
  16.  
    nevergoodenuf

    nevergoodenuf Well-Known Member

    No, I have tried them. Different COB
     
    GreenLogician likes this.
  17.  
    Cold$moke

    Cold$moke Well-Known Member

    That looks like a beast of an led awsome preformance based on looks alone.

    But man i would die if i had to hear that fan .
    Would definitely need to fix that before it would go anywhere near my room.

    Awsome vid though thanks
     
  18.  
    canadian1969

    canadian1969 Well-Known Member

    ah, wrong column, thx
     
  19.  
    nevergoodenuf

    nevergoodenuf Well-Known Member

    The CLU058 3618 4000k/90cri @ 450 watts is over 46,000 lumen. Is that seven CRI worth it?
     
    Randomblame and nfhiggs like this.
  20.  
    paraordnance

    paraordnance Active Member

    Just 1 Sumsung F-series 4 foot strip (double row) pushing 19,000 lumens according to datasheet. So 23,000 lumens from 500 watt = horrible efficiency
     

Share This Page