DX » Community » Reviews » 1.5V~4.2V 3W Circuit Board w/ Cree for Flashlights (16.7mm*5.6mm)
Customer’s impression:
***** current is quality it is very small good driver boost i've ever seen
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  • posted byneiliewheelie on 01/22/2017

    Resistor modding to 200R got one of these driving a 365nm LedEngin UV LED from a single 4.2v cell, runs it very well at a perfectly stable/constant 1000ma(at the emitter). This usually isn't possible from a single cell due to the high forward voltage of these LEDs

    Impression:current is quality;

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  • posted by10223717 on 06/14/2016

    works much better than the original booster board that came along with flash light

    Impression:*****,current is quality,it is very small;

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  • posted byrndh0a48flltn on 08/03/2015

    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 not... Read more

    Impression:good driver boost i've ever seen,current is quality,it is very small;

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  • posted bySST90 on 04/02/2015

    In general folosesc acest driver pentru diodele laser de 1.5w (a140) si 2w (m140) de culoare albastre 445-450 nm. Le alimentez de la 1 acumulator 18650 si scot un amperaj de 1,2 Ah si un voltaj de 3,5-5,26v. Sunt chiar bune pentru asa ceva.

    Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver Super A140 blue laser driver


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  • posted byjonnyhayashi on 09/13/2013

    -Cheap -Only 1 operating mode (I like it) -small footprint, its easy to fit into a case -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) The product work as advertised, but it 2... Read more

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  • posted bynatong on 09/06/2013

    I tested with one AA Eneloop with Trustfire R5-A3. This board brighter than the original 40-50%. I very amazing with performance on the first power on. btw, It needs to sand down 0.5mm to fit on R5-A3. But on C3 stainless no need to sanding (100% fit). LED cables (red and black) very tiny and to... Read more

    Best fit on C3 brighter than original R5-A3 50%

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  • posted bymadsnake85 on 08/12/2013

    ++ One mode. + Very easy to install + Presoldered wires are nice, i didn't even cut them + Cheap I can't see none. Probably someone would want more modes, but i like the only mode very much. I fitted this on SKU: 10727. The old 5 mode circuit board became unstable after two years of usage, and on... Read more

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  • posted byBoaaa on 07/18/2013

    Inexpensive, definitely outweighs any effort for DIY. Once you know what the real operating parameters are you have a very nice circuit. The output power can be adjusted by changing the resistor marked "R150" (i.e. 0.15 Ohm) - lower it to get more power, increase it to get less power at... Read more

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  • posted bymervin82 on 06/19/2013

    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. The driver size is 16.7mm, not a big problem if you can file it down to Some... Read more

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  • posted bytdes on 06/11/2013

    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. Could be slightly brighter but that would compromise a... Read more

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