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diy led module

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diy led module Customers Reviews

  • Shiny!

    posted by adlerweb

    Bright! Really. Can easily compete with my other 25W-LEDs. Dimming using PWM works quite well. Input voltage is perfect for car or other lead-acid-battery-systems (e.g. solar).
    Dont forget to add proper heatsinking if you want to use is over extended periodes on full brightness. I used #35816 which is suficcient for my environment. It has only (gold-plated?) pads without holes so you should know how to solder
    If you need a lot of light using not much power this is your product.
  • Excelent quality power led

    posted by mrdevil831

    Warm white, good light, very good eficienty, starts working at about 6v. I think optimal eficiency would be at around 9.3v.
    Color temperatoure couldbe a little lower.
    A nice high power led at a very good price. I recomand this for hobbyst that like to experiment with low power and high eficiency.
  • Good array for the price

    posted by TheBeastFromOz

    A typical low cost array using standard 1W emitters. Easy to use, all emitters are wired in series, so just feed it 300mA or so (don't push the cheap LEDs too hard!) and you're done. The colour is quite nice, no green or pink tints, at least on mine.
    Not much else to say really, it does what it's supposed to.
    Fine for a low cost array to experiment with.
  • All 6 pcs working OK and similar way.

    posted by maverik2

    Cheap and works as promized. I couldn't find any differences in operation for 6 pieces.
    Worked well in my diy work lights (outdoor/12V). Easy to drive with cheap drivers that also are available in DX. Mechanial construction of the light was most difficult because of IP65 requirement in outdoor use.
    Quality vs price level is high. Very suitable for different D.I.Y projects when you need wide angle light beam.
  • Lack of documentation

    posted by JarekA

    - works
    There are 3 potentiometers and 3 LEDs on the board.SMT LEDs are soldered on the right (output) edge of board, and functions as follows (starting from bottom):- blue - lit when powered and when voltage is stabilized. Dims if flowing current is bigger than one set for 2nd LED (see below)- red - lit when flowing current is bigger than set via middle pot- red - lit when output current is limitedPotentiometers (as in picture):- left sets CV voltage (from 0.9V in my board)- middle sets the current level for 2nd LED (it has no impact on output voltage nor current)- right sets the current limitTo charge Lithium battery you need set the voltage to level of maximum charge voltage (e.g. 4.2V for Li-Ion), set the current limit to some value (e.g. 1C = 2.2A for 2.2Ah cell) and the middle pot to the current level as stated in datasheet of your cell (e.g 1/10th of maximum current).Be careful not to exceed maximum voltage of cell and use proper balancing circuit if more than 1S.
    You need some experience and experiments to prepare working charger using this board. It is definitely not a "plug and play" charger.

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