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led pcb board Customers Reviews

  • A useful product for mounting high power LEDs

    posted by sansjunk

    I bought these to mount 1W Cool White LEDs (SKU 65220) for a project where I am making solar powered LED lights for my home. I plan to mount these PCBs on a Aluminium heat sink (or a channel if that works out well).- The cost is really low and for me should be enough for making lights for the entire house.- I was pleasantly surprised to find that the top exposed Aluminium portions (near the edges) was coated with a transparent film thereby making it non-conductive.- The batch I got were well made - I was a bit apprehensive since I had read another review saying some were not were formed.
    The PCBs are coated with Aluminium dust and therefore should be cleaned well before use.
    Cheap but very functional product.
  • Quick electric test of 28-LED PCB

    posted by MarcoWink

    Compared to small emitters (10W, 20W) on metal board, this one has a much larger area, so cooling is more convenient and less critical wrt thermal conductivity.
    All leds appear to have same light intensity, aluminum PCB will make sure temperature is about the same over the board, which is important.
    Price per lumen, convenient.
    - heatsink/PCB is large enough to enable to run the light without additional cooling till about ~5W (0.25A, 20.5V)
    - I made some quick measurements, the PCB appears to have a Rth of about 4K/W. At 10W end temp of PCB was 60 C, at room temperature (not recommended for permanent use), note that in a ceiling fixture environment temperatures will be higher.
    - Note that when temperature of the leds increases, current increases with same voltage, so use a real current source in stead of voltage source to stay save!
    - you could cut (saw) the PCB if you need another voltage!
    "2800" lumen for 20 USD is good offer, convenient module.
  • Nice Led board

    posted by elpelikano

    Good qualityGood thermal conductorGood priceGood finishEasier to solder with 1W leds
    Useful for connecting several board and get a high illumination.
    Ideal for use with a heatsink. I recommend using silicone grease
  • A useful product for mounting high power LEDs

    posted by aptaa123

    Good qualilty, very easy to solder. Surface is clean, clearly marked solder pads, white surface for mounting in visible position. Solder sticks where it's supposed without messing around with a lot of fluss. I bought these to mount 2W Warm White LEDs (SKU: 133080). The cost is really low and for me should be enough for making a number of DIY lights for my home.
    Can be srewed on surface or mounted with thermal conductive adhesive. For uncomplicated soldering you need quite powerful iron.
    Lots of very functional PCB-s.
  • Powerful light

    posted by albertcfont

    pure white and very powerful light. Compact. I'll use it for an aquarium daylight. I'm happy with this LED board but it's a little bit expensive for beien a DX one
    Maybe it could cost a few dollars less, but it covers all my needs
    Do not forget to add extra heatsink, it gets really, really hot!

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