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frontpageiconian | Staff posted Dec 19, 2025 05:00 PM
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Item 1 of 2
frontpageiconian | Staff posted Dec 19, 2025 05:00 PM

DARKBEAM 365nm UV USB C Rechargeable Flashlight

$7.15

$13

44% off
Amazon
23 Comments 7,348 Views
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Deal Details
Darkness Beam via Amazon has DARKBEAM 365nm UV USB C Rechargeable Flashlight for $12.99 - $5.85 w/ promo code P7459D9E at checkout = $7.14. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Editor iconian for sharing this deal.

Note: Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.

Product Details:
  • Made of upgraded powerful UV LED bead, with high power of 10W and 1300mW radiant intensity. The 365nm Light is a real invisible uv light that is not dazzling. It doesn't look as bright as 395nm because it is invisible to human's eye. But, when it irradiates items containing fluorescent agents, security code or watermark, it will show obvious blue-violet light.
  • Built-in USB-C rechargeable battery (1h runtime, 1h charging time).

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Limited time deal, while supplies last.
  • About this Product:
    • DO NOT ALWAYS LOOK DIRECTLY AT UV LIGHT!
    • Rated 4.6 out of 5 stars at Amazon based on over 1,175 customer reviews.
  • About this Store:
    • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
    • If you're not a student, there's also a free 1-Month Amazon Prime trial available.
    • Seller Darkness Beam has a 100% positive feedback rating in the last 12 months, with over 2,290 Lifetime feedback.

Original Post

Written by iconian | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Darkness Beam via Amazon has DARKBEAM 365nm UV USB C Rechargeable Flashlight for $12.99 - $5.85 w/ promo code P7459D9E at checkout = $7.14. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Editor iconian for sharing this deal.

Note: Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.

Product Details:
  • Made of upgraded powerful UV LED bead, with high power of 10W and 1300mW radiant intensity. The 365nm Light is a real invisible uv light that is not dazzling. It doesn't look as bright as 395nm because it is invisible to human's eye. But, when it irradiates items containing fluorescent agents, security code or watermark, it will show obvious blue-violet light.
  • Built-in USB-C rechargeable battery (1h runtime, 1h charging time).

Editor's Notes

Written by citan359 | Staff
  • About this Deal:
    • Limited time deal, while supplies last.
  • About this Product:
    • DO NOT ALWAYS LOOK DIRECTLY AT UV LIGHT!
    • Rated 4.6 out of 5 stars at Amazon based on over 1,175 customer reviews.
  • About this Store:
    • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
    • If you're not a student, there's also a free 1-Month Amazon Prime trial available.
    • Seller Darkness Beam has a 100% positive feedback rating in the last 12 months, with over 2,290 Lifetime feedback.

Original Post

Written by iconian | Staff

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Top Comments

jesterfx
1074 Posts
362 Reputation
I don't know what real difference between the two models available, besides this listed one being 365nm and the other one they have as 395nm, the "color" differences being labeled "bluish" vs "violet" but the code works on both for those interested in either.

edit: I guess I could have just googled it before but here's the info for others that might need it lol...

"365nm vs. 395nm UV light: 365nm is deeper UV, appearing bluish-white, ideal for professional curing (resins, PCBs) and precise fluorescence (forensics, money checks) due to less visible light interference, while 395nm is closer to visible violet, great for general blacklight fun, atmosphere, and hobby curing but less effective for subtle detection and deeper work. Choose 365nm for accuracy and deep excitation, 395nm for visual effects and affordability"

22 Comments

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Dec 19, 2025 05:28 PM
319 Posts
Joined Oct 2020
ZepLedDec 19, 2025 05:28 PM
319 Posts
Thought it said fleshlight, pass.
2
23
7
Dec 19, 2025 07:29 PM
1,074 Posts
Joined Apr 2006
jesterfxDec 19, 2025 07:29 PM
1,074 Posts

Our community has rated this post as helpful. If you agree, why not thank jesterfx

I don't know what real difference between the two models available, besides this listed one being 365nm and the other one they have as 395nm, the "color" differences being labeled "bluish" vs "violet" but the code works on both for those interested in either.

edit: I guess I could have just googled it before but here's the info for others that might need it lol...

"365nm vs. 395nm UV light: 365nm is deeper UV, appearing bluish-white, ideal for professional curing (resins, PCBs) and precise fluorescence (forensics, money checks) due to less visible light interference, while 395nm is closer to visible violet, great for general blacklight fun, atmosphere, and hobby curing but less effective for subtle detection and deeper work. Choose 365nm for accuracy and deep excitation, 395nm for visual effects and affordability"
5
1
Dec 19, 2025 09:22 PM
441 Posts
Joined Jan 2014
CMGeniusDec 19, 2025 09:22 PM
441 Posts
I have both versions of this, they're pretty good. I like the form factor. The battery seems to drain quicker than some other similar size flashlights I have. I mostly use the 365nm, mainly for hunting down cat pee stains. The 395 has much more "spill" with areas glowing that aren't the target I'm looking for.
Dec 19, 2025 09:37 PM
4,123 Posts
Joined Aug 2011
fritzoDec 19, 2025 09:37 PM
4,123 Posts
Quote from ZepLed :
Thought it said fleshlight, pass.
Use this to scan for fleshlight use.
3
10
3
Dec 19, 2025 11:16 PM
1,013 Posts
Joined Nov 2013
Willow747Dec 19, 2025 11:16 PM
1,013 Posts
UV "beamer" fun for spotting scorpions (they tend to glow)
1
Dec 19, 2025 11:57 PM
15,538 Posts
Joined Nov 2019
LilylyDec 19, 2025 11:57 PM
15,538 Posts
Quote from CMGenius :
I have both versions of this, they're pretty good. I like the form factor. The battery seems to drain quicker than some other similar size flashlights I have. I mostly use the 365nm, mainly for hunting down cat pee stains. The 395 has much more "spill" with areas glowing that aren't the target I'm looking for.
got the cheap 365nm and it did not reveal any pee stains. human or cats. none.
Dec 20, 2025 07:58 AM
1,929 Posts
Joined May 2021
SkillfulPiranha7944Dec 20, 2025 07:58 AM
1,929 Posts
Quote from Lilyly :
got the cheap 365nm and it did not reveal any pee stains. human or cats. none.
I found urine stains on my bathroom ceiling! After that revelation, all towels, toothbrushes and haircare products went in a box. I even cover the toilet tissue with a sheet of plastic now. Research shows that toilet water droplets can splash 6-9 feet away.

https://www.youtube.com/watch?v=8...xsA&t=113s

https://www.bbc.com/news/science-...t-24820279

https://www.theguardian.com/socie...for%20you?
3

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Dec 21, 2025 01:19 AM
52 Posts
Joined Aug 2012
tasaintDec 21, 2025 01:19 AM
52 Posts
Quote from Willow747 :
UV "beamer" fun for spotting scorpions (they tend to glow)
And spiders
Today 02:33 AM
6,530 Posts
Joined May 2009
jkloisdafoiwdafToday 02:33 AM
6,530 Posts
Oops, can add to cart but unable to checkout
Today 03:27 AM
57 Posts
Joined Jul 2016
1mskToday 03:27 AM
57 Posts
Quote from iconian :
deal [amazon.com]
$7.14 @ Amazon w/ code P7459D9E

I like this one. violet and rechargeable.
2
Today 04:06 AM
162 Posts
Joined Sep 2017
MastercylinderToday 04:06 AM
162 Posts
Good for finding freon leaks, but i dont know which wavelength is best for that.
Last edited by Mastercylinder December 24, 2025 at 09:21 PM.
Pro
Today 03:34 PM
6,127 Posts
Joined Aug 2005
chi
Pro
Today 03:34 PM
6,127 Posts
Some things are better left unseen.
2
1
Today 03:44 PM
2,932 Posts
Joined Nov 2010
smarttToday 03:44 PM
2,932 Posts
Quote from ZepLed :
Thought it said fleshlight, pass.
It would probably fit you. Just remove battery
1
1
Today 04:05 PM
92 Posts
Joined Sep 2007
IamN41Today 04:05 PM
92 Posts
I'm in Arizona for the winter and have been wanting one of these for scanning for scorpions. Thanks!

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Today 04:33 PM
966 Posts
Joined Apr 2010
jdmikey83Today 04:33 PM
966 Posts
Thanks
1

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