More fake UVC "sterilizing" lamps from China! (with schematic)

I like quack products, but when it goes into the realm of faking medical equipment during a global pandemic they may just be scraping the bottom of the barrel.
This is a "UVC" germicidal lamp with what appear to be 395nm near-UV LEDs. It's built into a mechanic's rechargeable work light, making me wonder if it had an original intended purpose as a coolant leak finder, or if they have just repurposed the case at short notice to bang out a fake medical product. I doubt this has any germicidal action at all.

Update:- I've now tested this with a sensor capable of detecting real UVC germicidal LED wavelengths and it is definitely not germicidal. Although UVA is claimed to have a slight effect on some bacteria the most important area of the spectrum for germicidal and anti-viral activity is UVC due to its ability to interfere at an organic level. The same thing that makes some sections of the spectrum hazardous to skin and eyes.

I'm still waiting on the large COB germicidal lamp (eBay have removed that listing, so I don't know if it'll arrive or not) and have just ordered a GU10 style spotlight too. I'm fully expecting them to have standard ice-blue LEDs in them to fake the same colour as real mercury vapour germicidal tubes, which is scientific nonsense, since the reason the mercury tubes light that colour is because they have several spectral lines including visible ones and invisible ones. With LEDs a real UVC LED should be invisible unless it has a slight fluorescence or an integrated visible LED for safety.

Another update. The "60W germicidal" COB lamp has arrived and is a 30W ice-blue LED lamp with no UV at all. It also has the LEDs referenced directly to the mains supply and poses a shock hazard if touched.

There are some genuine LED based UVC wands being sold on eBay, but it should be noted that their output and longevity is a fraction of traditional mercury vapor UVC tubes.

The 18650 battery was not very generous in this light at less than 1000mAh. I guess that's reasonable for a light that won't get used too much in its original application of detecting leak tracing dye.

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