Recent content by conandrum

fenix-store
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    Coronavirus flashlight

    Thanks DIWdiver. To be honest its much better if we can find off the shelf, cheap parts otherwise its not worth the effort. I ask the moderator to allow this link due to necessity. Take a look at this: https://www.aliexpress.com/item/4000624878510.html?spm=a2g0o.cart.0.0.61ef3c00XiPsey&mp=1...
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    Coronavirus flashlight

    Hey, Thanks for the suggestion. I can see that this flashlight can take 2x 26650 @3.7V, but it can also take only one. That opens the question: what voltage is it sending to the LEDs? Does that depend on the controller? What controller should I use with these UVC LEDs which need 6+V to operate...
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    Coronavirus flashlight

    Can anyone suggest a suitable host for 6+V that can take a 20mm PCB? Thanks.
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    Coronavirus flashlight

    LOL :twothumbs you cracked me up!! Hey guys, let's not get wrapped up in the usecases here. You could sterilize anything... money, wallets, keys, etc. you can have in in your car, back pocket, purse. Come on, suggest to me a suitable host for this 20mm PCB and a suitable controller and let...
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    Coronavirus flashlight

    You may be right there. Of course, even the commercial products mentioned earlier, could suddenly decide to malfunction, thus leaving you with a 'false sense of security' as NBP already mentioned. Even so, that does not mean that we have to give up. I myself also do not want to get into a deep...
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    Coronavirus flashlight

    You are absolutely right. Nothing worse than a false sense of security. Safety should be the top priority here.
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    Coronavirus flashlight

    I cannot provide a link guys (as per CPF policy), but you could do a search for a company called 59s and have a look at their products. You will see the LEDs we are talking about. e.g. they have a wand product with 20 LEDs and some sterilizing containers. All I want is a host for this 20mm pcb...
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    Coronavirus flashlight

    Guys, 275nm kills everything. All you need is 2500uJ/cm2 for 15s. I have done enough research to be confident in this. Therefore 2500uJ/cm2 for 90s from 2-3 cm is more than enough to kill anything inside the pores of your mask for example. 275nm is very pervasive - it will even penetrate your...
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    Coronavirus flashlight

    I will agree with you on the fun part for sure! I love building stuff myself. But please keep in mind that UVC lamps in water filtration systems have a very small window of time to kill whatever passes in their vicinity. This build is different. We have ample time to disinfect small items...
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    Coronavirus flashlight

    The 275nm is PERFECT and the PCB I posted is 275nm. I am well aware of all the UVC capabilities already in the public domain.
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    Coronavirus flashlight

    Oh, before I forget, the MAJOR reason I want this thing is for MASK DISINFECTION. Masks are very expensive. We cannot be throwing them away after a few minutes of wearing them. With this flashlight we could just pass it over the outer surface of the mask and it will be safe to use again for at...
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    Coronavirus flashlight

    Thanks for the tip - I will have a look. As to the effectiveness, you could also try a search for medical studies. Some have shown that 2500uJ/cm2 can easily destroy any living microbe in under 15s from a distance of 2-3 cm. So I am sure it will be effective the closer you get it and the longer...
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    Coronavirus flashlight

    I am not interested in selling or naming the flashlight. I just want to make some for my family and friends asap. Plus it may be useful for everyone else.
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    Coronavirus flashlight

    Hi all, first post here. In need your help... to create a UVC LED flashlight for disinfection purposes eg. bacterial, viral etc. I found this UVC 4xLED...
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