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circuit board memory Customers Reviews

  • Very good driver

    posted by TheBlackBird2

    I have the old version, the one in the 'customer images' and it's great.
    It is driving a P7 at full 4A in a floodlight every night for more than a year now without any problems.
    I am driving it with a 5V Switching Power Supply capable of 10A set at 5.8V so it can get 5.5V after the voltage drop.
    And if only somebody could tell us how to force them to one mode only it would be perfect.
    Great driver, it can drive a P7 with no problem with enough heatsinking and please somebody find out how to make this one mode.
  • 3*7135 chips

    posted by espimones

    7135 chipsRegulatedMemoryReal output advertised
    This regulator drive out fairly steadily 1.4 amps. in max. mode.Exactly: 1.35 in high mode, 0.4 in middle, 0.6 in low (fluctuating in sos and fast strobe modes).I have put it, working together with a 16 mm alu base Cree R5 led in my Trustfire TR-801, and it bright now 25%-30% more than the original Cree Q5 led, giving a really flood light!According Cree data sheets, Cree R5 can hold up 1,5 mA, so this regulated circuit is perfect to this led. Other drivers that can only drive up 1000 Ma, will give 25% less light tan this.
    I recommend it
  • 70% Efficiency buck Driver

    posted by amelyman

    27,9 Watts power from source at High mode
    So, looks exactly for SST-90 LED...
    Probably I hame made some mistake thru measuring and the Efficiency is higher...
    I measured with UNIT UT-70A Multimeter the linear voltage and linear current. As I know, it is not exactly correct (LED power is not "Linear")
    Really powerful driver. So, it has 5 modes - 28 watts, 14 watts, 8 watts from the Source and fast strobe and S.O.S. modes.
  • Good Board

    posted by ABC1950

    Curcuit board is as described.
    The board is very easy to mod despite the fact that it came without any instructions. Memory mode works fine. All 5 modes are working nicely. The Mid and Low mode are really useful, mid being bright enough for distance throw and low being not too dim.
    This board is actually the exact one as the board i have in my SolarForce L2M 4.2-8.4V flashlight. It came as a surprise when i was comparing the two. It made me think if my solarforce bulb unit is a fake? or maybe this board is just simple and good enough for the factory to be using it in their flashlight? Needless to say it fits nicely in my L2M.
    It's definitely a good buy if any of your circuit board is fried.
  • Good circuit board

    posted by KentS

    Seems to pump out a lot of current on high, medium is still bright with a CREE R2 and for once low is really a low. Build quality seems good (I soldered on it and it still works :-))
    17mm fitted the pill on my host but many pills are made for 16mm. I wouldn´t start to sand this thing down.
    Intensity with 1 NiMh on high and medium is about the same.
    My soldering skills are very lacking so heat sinking in my application is not good. I have not noticed that it gets very hot though running on three NiMH.
    Good circuit board with a good selextion of modes and input voltages.


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