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frontpageiconian | Staff posted Nov 13, 2025 03:27 PM
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frontpageiconian | Staff posted Nov 13, 2025 03:27 PM

395nm DARKBEAM USB Rechargeable UV Flashlight (LED White)

$9.00

$18

50% off
Amazon
56 Comments 21,493 Views
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Deal Details
Darkness Beam via Amazon has 395nm DARKBEAM USB Rechargeable UV Flashlight (LED White, A900) on sale for $17.99 - $9 when you apply promo code PUWIW4WP at checkout = $8.99. Shipping is free with Prime or on $35+ orders.

Thanks to Sr. Deal Editor iconian for sharing this deal.

Note: Do not stare at UV light without proper protection. 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:
  • Dual-light flashlight that combines LED bright white light and UV 395nm light.
  • For camping, emergency use, outdoor adventure, pet urine, stains detection, leak detection, 3D print curing, rockhounding, car maintenance, fishing, etc.
  • 1300mW radiant intensity.
  • 3 white light modes of High, Low, Strobe.
  • Focus adjustable LED flashlight head, the floodlight can easily illuminate up to 2500 square feet, while the narrow beam up to 660ft distance.
  • Comes with rechargeable battery, up to 8-20 hours of continuous work. Take only 4 hours to fully charged with the equipped USB to C charging cable. The four-level LED power display makes the power indication clearer and more convenient for you to charge the rechargeable flashlight in time.
  • High-quality aluminum alloy case, greatly enhance heat dissipation performance and make the uv flashlights more reliable.
  • IPX4 waterproof, well performance even in rainy days.
  • Comes with a pocket clip, small size and side switch make it easier to operate with one hand, fits in your hand, backpack, survival bag, or car toolbox.

Editor's Notes

Written by persian_mafia | Staff
  • About this product:
    • Rated 4.6 out of 5 stars based on 130 Amazon customer reviews.
  • About this store:
  • Additional notes:
    • Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.
No longer available:

promo code 5TPBVYPQ

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 395nm DARKBEAM USB Rechargeable UV Flashlight (LED White, A900) on sale for $17.99 - $9 when you apply promo code PUWIW4WP at checkout = $8.99. Shipping is free with Prime or on $35+ orders.

Thanks to Sr. Deal Editor iconian for sharing this deal.

Note: Do not stare at UV light without proper protection. 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:
  • Dual-light flashlight that combines LED bright white light and UV 395nm light.
  • For camping, emergency use, outdoor adventure, pet urine, stains detection, leak detection, 3D print curing, rockhounding, car maintenance, fishing, etc.
  • 1300mW radiant intensity.
  • 3 white light modes of High, Low, Strobe.
  • Focus adjustable LED flashlight head, the floodlight can easily illuminate up to 2500 square feet, while the narrow beam up to 660ft distance.
  • Comes with rechargeable battery, up to 8-20 hours of continuous work. Take only 4 hours to fully charged with the equipped USB to C charging cable. The four-level LED power display makes the power indication clearer and more convenient for you to charge the rechargeable flashlight in time.
  • High-quality aluminum alloy case, greatly enhance heat dissipation performance and make the uv flashlights more reliable.
  • IPX4 waterproof, well performance even in rainy days.
  • Comes with a pocket clip, small size and side switch make it easier to operate with one hand, fits in your hand, backpack, survival bag, or car toolbox.

Editor's Notes

Written by persian_mafia | Staff
  • About this product:
    • Rated 4.6 out of 5 stars based on 130 Amazon customer reviews.
  • About this store:
  • Additional notes:
    • Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.
No longer available:

promo code 5TPBVYPQ

Original Post

Written by iconian | Staff

Community Voting

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Top Comments

dudeofderp
57 Posts
10 Reputation
If you live in an area with scorpions, you can use this at night to make sure you're aware of where they are.
CoralSink359
23 Posts
10 Reputation
Finding hornworms on tomato plants
KevinK1839
96 Posts
43 Reputation
I use these to recharge glow in the dark balls my dog fetches.

55 Comments

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Nov 13, 2025 10:00 PM
412 Posts
Joined Nov 2013
Kevington82Nov 13, 2025 10:00 PM
412 Posts
Quote from Huu26 :
Honest question. What is a good use case scenario is this for?
I use a UV light to cure resin. You can get decent size bottle cheap on Amazon that are both flexible and firm when cured. Lots of odd little uses for these!
Nov 13, 2025 10:37 PM
156 Posts
Joined Feb 2017
lanman31337Nov 13, 2025 10:37 PM
156 Posts

Our community has rated this post as helpful. If you agree, why not thank lanman31337

These are great to detect certain uranium glass. Got one for the missus, she collects it.
2
1
Nov 14, 2025 12:02 AM
4,314 Posts
Joined Sep 2005
Neo42Nov 14, 2025 12:02 AM
4,314 Posts
Good for recharging kids' glow in the dark stuff. I have a tiny one that I've used to charge up stick on stars, this one would probably be a lot faster (brighter)
Nov 14, 2025 01:20 AM
391 Posts
Joined Apr 2013
almightyartsNov 14, 2025 01:20 AM
391 Posts
Quote from Huu26 :
Honest question. What is a good use case scenario is this for?

CHarging watch lume
Nov 14, 2025 01:41 AM
93 Posts
Joined Jun 2023
AquaIdea9357Nov 14, 2025 01:41 AM
93 Posts
Quote from Slickone_ :
Cheap lights use 395nm. Look for 365 nm.
Newegg has the same brand, one of each for $29.99 plus Amazon has one of each same brand for $19.99.
1
Nov 14, 2025 01:52 AM
87 Posts
Joined Sep 2021
HiTechComputers937Nov 14, 2025 01:52 AM
87 Posts
Quote from abouelsteif :
I read that wayyyy wrong!
glad I wasn't the only one
1
Nov 14, 2025 03:23 AM
2,703 Posts
Joined Nov 2008
sHockz_atxNov 14, 2025 03:23 AM
2,703 Posts
Quote from Huu26 :
Honest question. What is a good use case scenario is this for?
Rock hounding. Lighting up UV discs for disc golf. Checking for scorpions in your tent. Curing resin prints. Checking IDs. Hvac leaks. Checking hotel rooms for cleanliness/human fluids. Lots of things. In for 2
1
1

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Nov 14, 2025 03:27 AM
2,703 Posts
Joined Nov 2008
sHockz_atxNov 14, 2025 03:27 AM
2,703 Posts

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

Quote from Slickone_ :
Cheap lights use 395nm. Look for 365 nm.
Thats just not true. 395 is in the human visible light range, and much better for things like lighting up disc golf discs. In fact 395 is pretty much the top tier option for this, and 365 is not. It just depends on application needs. Fish tanks much prefer high nm ranges up into the 400's, for example.
2
2
Nov 14, 2025 04:01 AM
4 Posts
Joined May 2025
CalmMusic385Nov 14, 2025 04:01 AM
4 Posts
Quote from FancyScene4255 :
Only 2.57 comes on the code for me. Yer another proof that amazon subjectively raises/tailors pricing on the fly based on yer demographic…
This has happened to me many times with Amazon
Nov 14, 2025 04:43 AM
735 Posts
Joined Apr 2009
guaranaNov 14, 2025 04:43 AM
735 Posts
Do NOT use this on hotel bed sheets. You have been warned.
1
3
2
Nov 14, 2025 05:18 AM
3,153 Posts
Joined Jun 2010
boobolooNov 14, 2025 05:18 AM
3,153 Posts
Quote from Kevington82 :
I use a UV light to cure resin. You can get decent size bottle cheap on Amazon that are both flexible and firm when cured. Lots of odd little uses for these!
The windshield resin never seems to set though, maybe I got a bad batch meh
Nov 14, 2025 01:47 PM
18 Posts
Joined May 2023
GoodSteward07Nov 14, 2025 01:47 PM
18 Posts
Thanks OP, in for 1! Tried for the pair but promo wouldn't work so settled for 1.
Nov 14, 2025 03:27 PM
118 Posts
Joined Jan 2023
TimelessJoeNov 14, 2025 03:27 PM
118 Posts
Quote from Huu26 :
Honest question. What is a good use case scenario is this for?
Flash it on your GF's mouth after a 'girls night out'
Yes I'm still bitter...
8
3
Nov 14, 2025 03:36 PM
158 Posts
Joined Oct 2017
nlanderNov 14, 2025 03:36 PM
158 Posts
Quote from Huu26 :
Honest question. What is a good use case scenario is this for?
Charging anything glow-in-the-dark, detecting cat urine on carpets, checking ID's as a bouncer at a club.
1

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Nov 14, 2025 05:35 PM
4,502 Posts
Joined Dec 2012
Slickone_Nov 14, 2025 05:35 PM
4,502 Posts

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

Quote from sHockz_atx :
Thats just not true. 395 is in the human visible light range, and much better for things like lighting up disc golf discs. In fact 395 is pretty much the top tier option for this, and 365 is not. It just depends on application needs. Fish tanks much prefer high nm ranges up into the 400's, for example.
I don't know anything about disc golf and have never seen it mentioned in any UV talk, but for the things most people use it for, what I said is true. Especially for scorpions, which is one of the main reasons. 395nm puts out a lot of visible light, which you don't want. It's also abosulutely true that the cheaper lights are almost always 395nm.

https://www.candlepowerforums.com...ns.458328/

https://www.reddit.com/r/flashlig..._uv_light/
2

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