Recent content by clawnfish

fenix-store
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    How to diagnose a firing problem

    Your photos are completely out of focus. I don't think anyone can comment on those photos . Try to take new photos with the circuit and cables in focus.
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    driver for bridgelux vero 29

    Hi lidas. You can use taskled hbflex or hboost driver. I am using hbflex with 5 x 26650 li-ion batteries in series with the driver set at 2 Amps. I also tried it with hboost and a 50k logarithmic potentiometer which allows stepless dimming. With these drivers , you need a battery bigger than...
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    18650 battery configuration

    Just saw your photos in the other topic. Nice work. When can we see some test videos ?
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    18650 battery configuration

    Wov :) Can you share a few more photos? It looks quite big. How is the housing looking like?
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    Using 2 x 12Volt battery packs in series . Is it possible ?

    Thanks for the explanation mattheww50. Very useful information . I think I will be better trying to find a single pack in those specs to be on the safe side .
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    Using 2 x 12Volt battery packs in series . Is it possible ?

    Hi, I need a battery pack of around 24 volts and 5 - 6 Ah to power a 100Watt COB LED Module. I live in Europe and could not find anything fabricated ( there are LiFePo battery packs but I want to use Li-Ion/LiMn based battery pack ). I have searched the forum and googled it but could not find...
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    Cooling questions and concepts

    Thanks for all the explanation DIWdiver. Now I understand how you fitted the glass but I am not as brave as you :) so I will use a bezel just in case. I will still have only one o ring inside the front part and the glass will sit on it and the bezel will press from above to keep it in place...
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    Cooling questions and concepts

    Hi DIWdiver, Do you think this separate heat sink can be an issue thermally even if it is used only underwater ( which will be the case)? My first thought was also to have it a single solid piece but the COB I'm planning to use is 1.9 mm thick and if I have it as a single piece , I may not use...
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    Cooling questions and concepts

    Hi Lucca, If your response is about my above drawing, then , it is going to be Aluminium completely both the body and the heat sink. The LED module will be installed at the top and the driver circuit will be installed at the bottom side of the heatsink. Do you see any problems with this kind...
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    Cooling questions and concepts

    What about this guys ? Do you think a design like this will be OK for 100Watt COB LED Module ? The part marked as Heat Sink is a separate part with 2cm thickness.
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    18650 battery configuration

    Thanks Deeperdiverdude. Off topic but, I am trying to build more or less the same light as you are working on as I mentioned and I couldn't decide the design of the light head, where to put the magnetic switches, how thick should i have the part that will work as the heatsink for the LED and the...
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    Ebay "4000 lm", "120m" Dive Light.

    Thank you DIWdiver for the explanation. You mentioned that you have drivers too. Do you sell them ?
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    Dive lights finished but

    Hi, I'm interested in building battery packs with protection circuits and I have very little idea about how to do it too. Have you been able to find any information ? Thanks
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    18650 battery configuration

    Hi DIWdiver. I meant, around 100W. 42.5 Volts at 3A is an approximation I get from the actual datasheet of the COB LED module I am planning to use. Look at page 12, in the graph, the MAX curve at 3A shows about 42.5 Volts and I used it to get the worst case scenario ( or the best case scenario...
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    Ebay "4000 lm", "120m" Dive Light.

    Hi, Does anybody know how does the switch of this lamp works. Form the pics, it can be seen that it has only one hall sensor. Do you have any idea if we can use such a solution, for example, with taskled drivers for dimming, or the ones like pcb-components ? Thanks
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