It's time for sterling silver flashlights

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ezeqdb
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It's time for sterling silver flashlights

Silver is the best material to make a flashlight. Here me out.

Well, considering all facts, for a work light it’s actually aluminum because it’s cheap, lightweight and conducts heat well enough.

The thing is that there is a big enough market that uses flashlight almost as jewerly EDC pocket rockets. And better materials than anodized aluminum are copper or titanium.

The problem with copper is that it’s very reactive, soft and oxidise over time (but we say it gets PATINA).

Pure silver has almost the same physical characteristics as copper but it’s as silver and shiny as it can gets, and sterling silver (92% silver + other metals), is harder and doesn’t gets patina.

Thermal conductivity: Silver 406 vs Copper 385 vs Gold 314 vs aluminum 205 vs steel 50 vs titanium 17 W/mK. Titanium looks cool but its closer to a freaking brick than to metals, so it can’t hold mid-power leds. That’s why the d4v2 has a copper head.

Doing some math:

Silver density (10.49g/cm3) is aprox 10% higher than copper (8.96 g/cm3).
The material itself is 650 USD per kilo, vs 8 USD per kilo of copper.
If an aluminum d4v2 weights 70g (without battery). Let’s say we have 60g of aluminum here. A full sterling silver d4v2 would be around 233g of silver. Depending the alloy, we would be talking about 200g of silver. This is something around 130 USD of silver.

Is it expensive? Yes of course. Are there extra manufacture costs related to small batches? Yes, I’m sure.

Would you buy a FREAKING STERLING SILVER D4V2 for 300 USD? Consider that if it sh*t hit the fan, you can sell it as metal for over 100 USD?

Also, a Lumintop Tool AA copper wheights 64g, so a sterling silver one would be around 70g. Which makes more sense, and could probably be sold for 150 USD.

I’ve just posted this on reddit, and the comments are already on fire. https://www.reddit.com/r/flashlight/comments/wrrv3u/its_time_for_sterlin...

"no le temo a la oscuridad, la oscuridad me teme a mí"

jon_slider
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Yes, a Wurkkos TS10 in Sterling Silver would be a Buy it Now, especially if under $200

thefreeman
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Are you basing your whole argument on the thermal conductivity of silver being two times that of aluminium and it’s inoxability ?

In that case you are mistaken, diamond with its 2000W/m.K is obviously the best flashlight material.

pc_light
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Given that a machinist would have to start with many times the weight of silver to begin with as raw stock, I’m guessing the proposed D4V2 would be more like $1,300+ than the $130 estimated.

Would certainly look nice though.

Here’s are a couple of smaller lights I silver plated -

On the light side.

Neb_77
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I agree. I would love a silver flashlight. Maybe a silver KR4. There is also Argentium silver. Higher silver content than sterling and more durable. They use it in some men’s rings.

jon_slider
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pc_light wrote:
Here’s are a couple of smaller lights I silver plated -
Love

guessing the hosts are copper?

can you also plate aluminium?

pc_light
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You guessed it JS, both are CU underneath.

I believe AL can be silver plated but I’ve never had it done.

On the light side.

gravelmonkey
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This topic comes up every now and again (I think, maybe I also like the technical properties of silver), that said, after a bit of googling, I couldn’t find anyone who’s made one, which is a bit odd…

I guess, apart from bling-factor, you could keep costs down by making only certain parts of silver, and the rest out of aluminium.

I think to keep costs reasonable, AA or AAA form factor would be place to start? Maybe Reylight special edition?

jon_slider
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Ocelot
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jon_slider wrote:
https://www.shapeways.com/product/XHTPDUCHH/[/quote]

 

Heck of a find, Jon!

 

Here's a link to Tofty's full model line of flashlights and pens: 

 

https://www.shapeways.com/shops/toftylight

 

And the $800 3D printed silver body section... tail section is an additional $400 to complete the light.

STUNNING!

 

https://www.shapeways.com/product/M4R2CNFCG/ag-torch-silver-body-section-ser-002-1-of-4?optionId=41134253&li=shops

 

 

puglife2
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one wildtrail wt90 in sterling silver for me please

thefreeman
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Ocelot wrote:
Here’s a link to Tofty’s full model line of flashlights and pens: 

 

https://www.shapeways.com/shops/toftylight

 

 

Wow he even make them in gold and platinium, the 16340 one costing 18000$

Edit: they’re actually 3D printed

Ocelot
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PRODUCT DESCRIPTION:   TOFTY'S FLASHLIGHT 
I present my 3D Printed Silver (Ag) Torch Project.
This is the main body section with serial number 002.

The finished light's specifications are:
An LED-Tech Cree XM-L U2 mounted on a 16mm copper MCPCB,
Shining through a Carclo 10003 20mm TIR lens,
Driven by an uprated 3.04A 8xAMC7135 multi-mode driver set to low/medium/high with memory,
Powered by an AW IMR 16340 high discharge cell,
Controlled by a tail mounted McClicky switch and extra sprung silver switch cover. The switch cover holds 6 off 2x6mm tritium vials.

 

 

jon_slider
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I agree the sterling AAA light is 3d printed

I think the 16340 model with the body cutouts, is lost wax casting

fortunately for my wallet, neither of those have Anduril Wink

plus to me, the cutouts on the 16340 body tube, are a deal killer..

Valynor
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> Pure silver has almost the same physical characteristics as copper but it’s as silver and shiny as it can gets, and sterling silver (92% silver + other metals), is harder and doesn’t gets patina.

 

This is wrong. Silver oxidizes but the bigger problem is Silver sulfide (the reason why you should not eat eggs with silver spoons). Unfortunately sulfides are also in your sweat. 

Silver is also a soft metal, drop your shiny silver flashlight once and it will look a lot worse than e.g. aluminum which already is not a very hard metal. 

jon_slider
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pure silver does not get patina

normal sterling silver is 7.5% copper, and gets patina

Argentium Silver does not tarnish, it has less copper

FlashPilot
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Assuming pure metals, silver has almost no advantage over copper during heat transfer.

Element Thermal Conductivity (W/cmK)
Silver 4.29
Copper 4.01

Valynor
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jon_slider wrote:
pure silver does not get patina normal sterling silver is 7.5% copper, and gets patina Argentium Silver does not tarnish, it has less copper

 

Pure (.999) silver is way too soft to be used as a flashlight body. 

It will still tarnish from the sulphur in your skin/sweat as there are no other elements required: 
2Ag + H2 S → Ag2 S + H2 

BlueSwordM
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Again, just use silver plated copper.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

pinkpanda3310
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jon_slider wrote:
https://www.shapeways.com/product/XHTPDUCHH/

Tofty was pretty innovative. Pity he doesn’t post here anymore. https://budgetlightforum.com/node/23030

  

wle
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nope

Al is my friend

and one tiny copper AAA light

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Ocelot
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Al is all you need...

 

but silver plated copper is uniquely beautiful and practically achieved

 

Since this seems to be borderline silliness and earlier the superlative properties of diamond were mentioned,  why not consider inexpensive lab grown synthetic diamond?  A Cinderella slipper flashlight? 

 

How about a Prince Rupert's drop optic mounted to an LED?

 

Dare to Dream!

Sirstinky
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While .999 silver has a slight edge in electrical properties and thermodynamics, it is neither practical or offers any remarkable advantages over copper or aluminum. Same with titnaium. It’s diminishing returns vs. cost and availability and usability. Would you pay $1000 or $2000 or more for a .999 silver flashlight that would only be a showpiece/paperweight? Sterling silver may be more viable, really cool and exclusive for a collector though, like a piece of jewelry. Something like that would be relegated to one-off and very limited edition pieces made to order for $$$$.

Ocelot
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If I was spending high four figures on a flashlight,  only one name comes to mind ...

 

Cool Fall

 

Absolutely DaVinci-class artistry in design, engineering, machining, and function.

 

$4k-$8k for a Tri-V?  You betcha, if I had disposable income like that....

 

Methinks the SPY007 is still available. 

 

The Tri-V is the McLaren F1 of flashlights 

 

Precious metals need not apply

 

 

For aesthetics,  I love the appearance of silver plated copper

 

RichH
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BlueSwordM wrote:
Again, just use silver plated copper.

Totally agree. It’s one of the reasons Alu is anodised.

South Saxon

flashflood
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I Ag-ree.