DX » Community » Reviews » 1.5V~4.2V 3W Cree Circuit Board for Flashlights (16.7mm*5.6mm)
5.0
  • 5 star 14 ( 67% )
  • 4 star 7 ( 33% )
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  • posted byjonnyhayashi on 09/13/2013

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week Pros:-Cheap -Only 1 operating mode (I like it) -small footprint, its easy to fit into a case Cons:-High working temperature -Current regulation is not very good. -The wires that come with the unit are too thin -Only 1 operating mode (for those who like more options)... Read more

    1 0
  • posted bymadsnake85 on 08/12/2013

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month Pros:++ One mode. + Very easy to install + Presoldered wires are nice, i didn't even cut them + Cheap Cons:I can't see none. Probably someone would want more modes, but i like the only mode very much. OtherThoughts:I fitted this on SKU: 10727. The old 5 mode circui... Read more

    0 0
  • posted bymervin82 on 06/19/2013

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month Pros:Well-priced is probably the best pro about this product! Buy it in bulk and it is even cheaper. Despite the low price, it works as advertised with no flashing, low/hi function. Also received the item in less than a week. Cons:The driver size is 16.7mm, not a b... Read more

    0 0
  • posted bytdes on 06/11/2013

    Involvement:Novice  (still getting used to it) - Ownership:1 week to 1 month Pros:Exactly as described, just dropped in, runs an x-re r2 perfectly well, long run times. I am a novice when it comes to electronics, but found it easy to use. I have some other cheap torches that i am thinking of upgrading with this cree board. Cons:Could be sli... Read more

    0 0
  • posted byJosh101 on 03/12/2013

    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, b... Read more

    0 0
  • posted bymundaire on 03/05/2013

    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 soldering iron! OtherThoughts:Used this... Read more

    0 0
  • posted bydingran2009 on 03/01/2013

    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. OtherThoughts:Don't have a scope to me... Read more

    0 0
  • posted byHexacat on 12/08/2012

    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... Read more

    Driver, IC marked as J1IH Measurment of the Driver in the Lab Output as variables of the Input voltage with XM-L Measured with XM-L and 2 Diodes 1N5404 in series
    4 2
  • posted byrelic38 on 12/05/2012

    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 abov... Read more

    0 0
  • posted byyrnkrn on 12/04/2012

    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 correctly in... Read more

    0 0

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