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1.5V~4.2V 3W Cree Circuit Board for Flashlights (16.7mm*5.6mm)

1.5V~4.2V 3W Cree Circuit Board for Flashlights (16.7mm*5.6mm)

2.19

5 (17 Reviews)

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  • 5 Star:6511 (65%)
  • 4 Star:356 (35%)
  • 3 Star:00 (0%)
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    • Overall Rating: 4
    • Price: 4
    • Quality: 3
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Good

    posted by Josh101 on 03/12/2013 Certified Owner

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

    Pros:
    A good small driver for your projects or repairs. The output is relatively stable, but if your looking for a good driver go for these.
    Cons:
    Was shipped in a plastic bag, as a result one of the two I ordered was damaged. A chunk was missing from the Inductor, but it s...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 3
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Decent driver

    posted by mundaire on 03/05/2013 Certified Owner

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

    Pros:
    Decent, though I would have preferred the connecting wires to have a bit more 'substance' to them.
    Cons:
    No instructions came with the unit, so best be prepared with a multimeter to double check the circuit before you get out your s...
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 4
    2 DXPoints
    earned for this post
    cheap boost converter

    posted by dingran2009 on 03/01/2013 Certified Owner

    Involvement:Novice  (still getting used to it) - Ownership:1 day to 1 week

    Pros:
    Very low price. Use it for cree Q3 light, and works fine. Eyeballing it is brighter than old dead board.
    Cons:
    Generate a lot of heat with 14500 battery. No idea how long it will last or if it is better than old dead driver.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Smallest Boost Converter i could find

    posted by Hexacat on 12/08/2012 Certified Owner

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

    Pros:
    Cheap and small Boost driver. Output seems regulated only between 1,8 V and 3 V, output current is ~600mA, output Power ~1,7W. Efficency was about 70-76%.
    Cons:
    Not realy regulated outside of the operating range. Also does not work regulated with higher Output voltage.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Excellent 1-2 AA/AAA driver

    posted by relic38 on 12/05/2012 Certified Owner

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

    Pros:
    - Good boost driver for 1 AA or 2 AA/AA cells, may be too much current for 1 AAA. - Small, fits in some AA flashlights - Will run up to 4.2V, unregulated (even 4.5V, but gets rather hot) - Simple resistor change to adjust output current
    Cons:
    - Unregulated above 3.0V. Drive current is determined by the LED used and any resistance in the circuit. Can be a problem for...
    View Detail » 
    • Overall Rating: 5
    • Price: 4
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    good driver for two AA or Lithium-ion

    posted by yrnkrn on 12/04/2012 Certified Owner

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

    Pros:
    While this driver works from 1V to 4.2V, its efficiency is terrible when voltage is lower than 2.4V. This problem is common with such drivers, as I noted on my review of SKU 128084. Also, current is not really regulated outside the 2-3V range (noted correct...
    Cons:
    I ordered three boards, one arrived short circuit due to bad soldering of the black wire. I fixed it.
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 3
    2 DXPoints
    earned for this post
    Ideal for Mini maglite@XP-G

    posted by mistrz173 on 12/02/2012 Certified Owner

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

    Pros:
    + Very cheap for this quality; + Very good input voltage range (I have tested it with voltage of 1,2V to 3,5V - its worked good) + U can cut it to fit in 14mm body ( 14500 batteries ). + Easy to solder additional spring. + output mA`s can by regulated by ch...
    Cons:
    - Efficiency with voltage of 4,2 Volts is not so good. - Inductor getting a bit to hot. - I @ 2 Volts = 2 Ampers.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Great little Driver

    posted by Phil_M on 07/31/2012 Certified Owner

    Involvement:General (knows how to use it) - Ownership:less than 1 day

    Pros:
    This is a Compact and very bright little driver, when pared to my P4. It is a lot brighter than another, more powerful drivers I bought at the same time (suk21106484). It has only 1 mode, so very easy to operate and there is no messing about with flashing o...
    Cons:
    The leads are a little thin and short, but this is only a minor problem. i am the wallrus.
    View Detail » 
    • Overall Rating: 4
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Quite good

    posted by LukeRed on 07/10/2011 Certified Owner

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

    Pros:
    Just one that says all: Works as expected.
    Cons:
    Wires could be more thick, that would improve efficiency a little.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    good

    posted by rrobsonm on 06/21/2011 Certified Owner

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

    Pros:
    You can get higher current buy resoldering R150 resistor to R100 (0.1 Ohm). To get more stable output add 10mF solid capacitor to both tantalum on-board (total 2 of 20 mF). I have done all above to drive Cree XP-G and get a small pocket sun 8-)
    Cons:
    No cons except maybe that the pre-soldered wires is a bit thin.
    View Detail » 
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