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led current Customers Reviews

  • Great DIY repair for singe AA flashlights

    posted by QBranch

    Great to have around for repair of small single AA flashlights. I have four HUGSBY P31 lights (sku: 35078) and unfortunately 3 have failed. Found out that the emitter and switch are fine, so it must be the emitter board. So I found these on DX and ordered 5. These fixed all 3 of my P31 lights. BUT be aware that 2 of the 5 sent were 3 mode boards (Hi-Lo-Flash) and 3 were 1 mode (Off-On). The SKU stickers on the zip baggies were identical (128096). Note that the black boards with a larger baggies were 3 mode and the green boards with small baggies were 1 mode.
    Items got sent in a bubble mailer envelope and 1 emiiter got smashed.
    Great DIY repair board and to have some around for spare.
  • Most perfect LED Driver on DX!!

    posted by Iceananas

    - PowTech PT4115: extremely easy to mod for your own purpose: change the sense resistor to vary your average current, you can also add a potentiometer or PWN module to dim your LED :-O - Can handle AC and DC, I didnt remove the bridge rectifier for the case I have to use AC. Although the efficiency will suffer, its the better solution for me.- Wiiiiiide input range. I wont go over 24VDC because of the small input capacitor, but anyway, there ist no better driver to build your 12V/24V LED project. Notice the input voltage must be higher than the summarized LED Vf.
    Will use this driver for my further projects. At 2.25$ it is a dream for every DIY.
    I removed the long MR16 pins to get it smaller. Get a small solder iron for the small parts (e.g. if you want to solder a pot to the chip). For me the most perfect driver I ever got.
  • very good driver

    posted by LeatherfaceNL

    its a very good LED driver.
    bought 3 but only needed 2 but later had to replace an older one that died (other brand and quality and more expensive)
    these run longer than the original expensive ones.
    and its even running 32 x 1w powerleds.
    it was a lil gamble because it says 21-30 leds but seems to work out perfect.
    its easy to install and connect.no extra work needed.
    shes running nice n smooth already a long time.
    its not running hot,the 32 leds burn just as bright as the 30 on the other one(at least i dont see the diffrence)
    one word GOOD stuff
    wish i bought more because all my original expensve ones are dieing.
    i need another one like this.
    great driver! if your planning to power up some 1w/300-350mA powerleds.(in between 21-30 ofcourse).. its a must have
  • Best Driver I've found

    posted by bls123

    Small, lightweight and easy to modify for just about any use. Has very good current regulation that only varies 5-10ma at most over the total operating range. The units single resistor that sets the current level is easy to change. Input has a bridge rectifier so polarity independent and can be fed from either an AC or DC power source. Bridge rectifier diodes are easy to remove for greater efficiency when powering from a DC source. Uses a PT4115 chip. This makes the max input voltage 40VDC (or about 28V AC) so up to 10-11 LEDs in series can be powered (depending on which LEDs are used and the total LED voltage required of course). Input capacitor is only rated for 25V however so must be replaced for higher voltages.
    Less expensive and a lot easier than building a current regulator from scratch. Exactly the same as 13555 and 13557 except for it's one resistor that sets the current level.
    I buy a number of which ever (13553, 13555 or 13557) is least expensive at the time for projects and simply replace the resistor when a different current level is needed.
  • very good reliable driver

    posted by armitatz

    - easy to use- easy to solder- delivers 1.4A to led- 1 mode perfect for simple designs and retrofitting in old lights.
    easy to solder. small diameter fits in many old lights. perfect for updating old lights. straightforward use. no problems with soldering. I used it for an xml led and it delivers 1.4Amps to the led. The use was with no problems and the driver works without geting too hot.
    nice driver. veru useful. easy to use. I expect a 1-mode 2.0A version...

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