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For anyone confused by the low-hanging-fruit NFT comments that don’t actually talk about what actually happened: The event was in Hong Kong and UV disinfectant lights were likely used by ignorant, frugal event lighting staff.

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ElleChaise@kbin.social ⁨1⁩ ⁨year⁩ ago
I like that you came to set the record straight, then just guessed. Confidence is sexy.

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- demesisx@infosec.pub ⁨1⁩ ⁨year⁩ ago
  The article also came to no conclusion, though they did point to an event that also happened in 2017 where this happened and the culprit was… what I “guessed”. I’m sexy and I know it. 😜
  
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- thorbot@lemmy.world ⁨1⁩ ⁨year⁩ ago
  Yeah above commenter is just making shit up, that was a different event
  
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abhibeckert@lemmy.world ⁨1⁩ ⁨year⁩ ago
Far more likely they just used ordinary stage lights where “huh, if I set channel 4 to full intensity I get a pretty purple, lets use that one”. The manual probably included a safety warning, that channel 4 must not be shined onto people for more than 30 seconds or so in each event… but who reads the manual?

Pro tip: if you see the guy a white or fluorescent colours glow really bright… get the fuck out of the room unless you have absolute faith in the workplace health and safety policies of the venue and lighting operator. The UV won’t blind you instantly but it will blind you very quickly if it’s too bright and you won’y know how bad it is until hours later.

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- towerful@programming.dev ⁨1⁩ ⁨year⁩ ago
  I’ve never encountered lights that don’t have UV filters in them.
  There’s no way to control the UV filter via DMX/Artnet/sACN. It’s a fixed dichroic filter in front of the discharge lamp. It’s an extremely cheap filter, as well, so I doubt it would be excluded from cheapo knock-off brand lights.
  Certainly on any light available in the US and EU. It just won’t get certified for sale.
  
  Besides which, I haven’t used a discharge lamp in years. It’s all LED now, even the cheap stuff.
  
  There is no way “set channel 4 to full” would disable any safety features in a moving light that would allow it to output damaging UV light. And the only other way it would hurt someone is if it was focussed on them, and they actively stared into it. Like, staring at the sun kind of level of staring at a light.
  
  So, get rid of that “ordinary stage lights” pish.
  
  This is absolutely a case of “we should get UV lights”. And instead of getting safe UV cannons for fun florescent paints, they got UV disinfectant lights. Probably still makes florescent paints glow, but it’s the wider band UV stuff designed to kill biological cells (ie disinfect). Which is exactly what it did to people’s skin and retina.
  
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- Duamerthrax@lemmy.world ⁨1⁩ ⁨year⁩ ago
  No, some event organizers will absolutely use disinfection lights because they’re pretty. I found the bigclive video where he talks about that happening at a Hong Kong fashion show.
  
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thorbot@lemmy.world ⁨1⁩ ⁨year⁩ ago
That’s not actually true, if you read the article more closely that’s referring to a different event where disinfectant lights were used. Not at this event.

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Duamerthrax@lemmy.world ⁨1⁩ ⁨year⁩ ago
This isn’t even the first time this has happened. thebigclive talked about how event organizers at a fashion show setup disinfectant lights for the pretty purple light. One of the attendees figured out what happened quickly the next morning and rushed to the venue to take pictures before the lights were thrown out.

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