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darkphotonstudio ,

I created an account just to answer this. They can short. We had a string of these, and it shorted and nearly caught the tinsel on fire. They weren’t man-handled, in fact we were extra-careful with them, because they were so thin and fragile-looking. These are dangerous. Do not use them.

Aussiemandeus ,
@Aussiemandeus@aussie.zone avatar

Welcome

darkphotonstudio ,

Thank you. :)

daq ,

The power supplies feeding these are typically .5A at 5v so they can’t draw more than ~2.5w. Is that really enough to generate sufficient heat to start a fire? Maybe if they are wrapped around something incredibly flammable?

wahming ,

Is that really enough to generate sufficient heat to start a fire?

In case of a short circuit, yes, more than sufficient

Omega_Haxors ,

They’re called enameled cables, they’ve got a thin layer of insulation which prevents them from rusting or shorting.

tesseract ,

To add, enameled wires are also used in motor windings and old CRT monitors (deflector windings). The easiest way to identify it is to scratch with a knife or burn a small portion of the wire to see if the enamel separates.

peter ,
@peter@feddit.uk avatar

What does it look like when the enamal seperates vs a non-enameled wire?

tesseract ,

Slightly brighter and shinier. The enamel gives it a slightly darker matte finish. More importantly though, the peeled/burned enamel looks different from copper.

0x4E4F ,

Yeah, those kinda puzzled me as well. They didn’t look like they’re varnished, but I suspect I could be wrong about that. After all, they do work, lol 😂.

sarmale OP ,

“Never change something that works”

Longpork_afficianado ,

It works for now, but the reason most wires have a rubber-like insulator around them is that it takes very little to Crack or abrade a thin coating such as this and turn it into a fire hazard.

I’m surprised a product with such a small safety margin is allowed for sale.

Frederic ,

It works with 2 or 3 AA batteries, not that much power

MrStetson ,
@MrStetson@suppo.fi avatar

Still enough to generate heat for something like dust to catch fire if it shorts

SpongyAneurism ,

I once accidentaly shorted the connector cables of a battery pack with 4 AA batteries. It very quickly generated enough heat to set the insulation of the cable on fire.

Don’t underestimate short circuits!

key , (edited )

It’s usually a thin resin/epoxy coating so it’s transparent and has a similar slick feeling as the metal would. The same coating can go over the leds so it’s fully waterproof.

BlueEther ,
@BlueEther@no.lastname.nz avatar

They are all insulated

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