DX  » Community » Reviews » AMC7135 1050mA Regulated Circuit Board for DIY Flashlights 10-Pack
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    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    great and simple mod to fix direct drive lights

    posted by oliverlensert7 on 06/08/2011 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    -great and simple mod to fix direct drive lights -small size -does not get to hot at 4.5v -does not flicker like a $20 driver i bought recently
    Cons:
    -gets very hot at 6v (max component ratings) - i blew one board doing a test (to see if it could handle 7.5v-it can't!)
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    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Fantastic mid range driver

    posted by gearhounds on 09/16/2008 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month

    Pros:
    Well made standard sized 17mm driver, works great with a single 18650 battery. Thanks to 3 AMC7135 chips, runs very bright all the way down to 3.4V or so before I could detect much dimming and still quite bright. In even a thin walled light does not make th...
    Cons:
    None. Zip. Zero. Some state that the number you need to buy is a con but I disagree. They just don't have enough places to put ...
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    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Simple and working, perfect for 4*NiMh

    posted by Bylborg on 06/12/2008 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    These units are small (17mm diameter, 3mm (approx) height) and easy to use if you have a good soldering iron. They provide good efficiency if Vin is close to Vout (4*NiMh with a 3.5 to 4.0Vf LED, for exemple). Reverse polarity protection is efficient and do...
    Cons:
    These circuit boards require proper heat dissipation. They are inefficient if the input voltage is much higher than the output(...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    They work well and are simple to use

    posted by Cheater512 on 04/02/2008 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

    Pros:
    Dead simple to use and they seem to work fine. They dont get very warm while in use. I only noticed a slight temperature increase.
    Cons:
    I had to guess the pin out. Fortunately I guessed correctly. The center connection is GND for both power in and the LED. The ou...
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    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Inexpensive, linear buck drivers

    posted by chimo on 01/19/2008 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:
    -Inexpensive -Can disable/remove 1 or 2 of the 7135s if a lower current is desired -Thermal protection works
    Cons:
    -one of the boards had a mis-alligned 7135 soldered on -contact pads could be better marked
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Low priced regulators

    posted by c654321c on 12/20/2007 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month

    Pros:
    Great little low priced regulators. Cheaper than many other boards that perform similar tasks.
    Cons:
    They only come in 10 and 20 packs. These require mid range input voltages.
    View Detail » 
    • Overall Rating: 4
    • Price: 4
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Cheap no frill regulator

    posted by rizki_p on 11/03/2007 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month

    Pros:
    Cheap regulator.
    Cons:
    no modes. cable not soldered tp the board.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 2
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Good solid little regulator

    posted by bryfos on 07/27/2007 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Rugged well protected against ubuse, polarity protected via "idiot diodes", cheap, can be configd. for 350/700/1000ma with modification. very fiddly tho.
    Cons:
    Took me a while to sort out a fault with using one particular LED. see comments & questions. tiny to solder if you are not...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 5
    • Ease Of Use: 4
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Awesome

    posted by joe-dm on 06/26/2007 Certified Owner

    Involvement:General (knows how to use it) - Ownership:1 week to 1 month

    Pros:
    Regulated 1A output from 3xD sized alkaline cells in my MAGLite. Current draw from the batteries was approx 900-1000mA.
    Cons:
    Only supports up to 4.5V. Would be great to have a circuit that output 1A and could take a supply of 9V or greater.
    View Detail » 
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