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current regulated led

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current regulated led Customers Reviews

  • Good value

    posted by victordv

    Very useful for people who need small led driver, because it is small, works well only with device who is drowning ~650 +-50 mA. I use it for led checking, and presenting to other people, for me is OK. But I am sceptical when it is installed, how long will it work, because it is heating.
    Very dangerous because it does not have cover, it could electrocute you.
    Good for pros.
  • 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...
  • Fine for automotive use (and other!)

    posted by meq123

    Great for driving 1watt LEDs in series. Can drive up to 4-5 Red LEDs in an automobile application (or 3-4 White LEDs)
    I'm using this in an automotive brake light (LED) application. Unlike another review here, I kept the bridge rectifier diodes, but proactively attached a 100nF (0.1uF) capacitor across the output (close to the LEDs) and have NO interference issues at the radio. This replaced a setup that used to have interference with the radio, so I know the pitfalls. I listened carefully to my radio on weak FM stations to confirm. (Note these are mounted in taillights, less than 9 inches from my car radio antenna.)
    Perfect for driving 1watt LEDs
  • 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 13553 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.
  • Mine are near 75% efficency

    posted by tonix1

    The one I have tested give me the following:
    Input 234,5V @14,35ma=3,36W
    Output 9,32V @282ma 2,679W
    EFFICIENCY = 75%
    (indeed the current measurement is variable, it start from 284ma to decrease costantly, I consider an average value)
    Very small, fits even DIY lamp, perfect to build ligthing with power leds.
    Good building quality (I don't know single component quality).
    Wiring is indicated DC OUTPUT= white negative- pink positive. AC Input= the white wire couple opposite side of the PCB.
    The circuit it is just a little step behind a very good one, A 15% ENHANCEMENT OF EFFICIENCY would be just good enough.
    a good choice to experiment with power led, a convenient way to build some nice home lighting.

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