UV LED Sterilization Lamp

RE: UV LED Sterilization Lamp

dubbie — Fri, 10 Apr 2020 14:50:43 GMT

Looks like a good project. But now we need some method of measuring the UV to see how powerful (?) it actually is, and we would also need to know how powerful it needs to be to actually kill the germs/microbes. I wondered whether pulsing the UV LEDs at a much higher current might create more germ killing power? The average power might be the same but the pulsed power might be more effective. Difficult to know.

Dubbie

RE: UV LED Sterilization Lamp

jw0752 — Fri, 10 Apr 2020 14:11:07 GMT

Hi Trent,

This is a nice innovative build. Did I understand that the light produced is UVA? UVA may not have the energy necessary to kill most pathogens. UVC with wavelengths between 200 and 300 nm is what I have seen recommended for killing germs and viruses. Since it is the direct radiation that kills the pathogen it might be a good idea to line the box with aluminum foil with the shiny side acting as a mirror. This will allow the light to bounce around and get into cracks and crevices of the item you are sterilizing.

John

RE: UV LED Sterilization Lamp

ankur608 — Thu, 09 Apr 2020 01:36:52 GMT

Good build, which can be easily replicated by anyone.

Though I would like to add the paper-currency to the list, that needs to be 'heavily-sanitized'.[View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-3b007ce1-f180-4785-8381-49d56d9fa4ec/contentimage_5F00_3.png:16:16]