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CyanMarmot641 70.2K Views
Feb 8, 2022 9:09 AM

Samsung Qi Wireless Charger and UV Sanitizer

$19

$50

62% off
+ Free S/H w/ Primeat Woot!
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Deal Details
Woot.com has Samsung Qi Wireless Charger and UV Sanitizer (US Version) for $18.99. Shipping is free w/ Amazon Prime or is otherwise a flat $6 per order.

Note: If you are checking out with Amazon Prime and you are seeing a shipping cost during checkout, look for and tap/click the "Use this address" button. The order page will finish loading and shipping will update.

Thanks to community member CyanMarmot641 for finding this deal.

About this item:
  • Intuitive Design. Simply close the lid and press the button to disinfect for 10 minutes.
  • Approved high germicidal efficiency. 99% sanitation effect. UV-C light effectively kills up to 99% of harmful germs and bacteria, including E. Coli, Staphylococcus , and Candida albicans.
  • Can also be used to sanitize your daily items such as glasses and accessories.
  • Packaging includes: UV Sanitizer with Wireless charging, USB Type-C Cable, User Manual (Wall Charger NOT included)

Editor's Notes

Written by persian_mafia | Staff
  • About this deal:
    • Our research indicates that this is $3.89 lower (17% savings) than the next best available price from a reputable merchant with prices starting at $22.88 at the time of this posting.
    • This deal price matches our previous frontpage deal from January with 84 thumbs up.
  • About this store:
  • Reviews:
    • This item has received an average rating of 4.4 stars out of 5 based on over 2,300 Amazon customer reviews.

Original Post

Written by CyanMarmot641
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Woot.com has Samsung Qi Wireless Charger and UV Sanitizer (US Version) for $18.99. Shipping is free w/ Amazon Prime or is otherwise a flat $6 per order.

Note: If you are checking out with Amazon Prime and you are seeing a shipping cost during checkout, look for and tap/click the "Use this address" button. The order page will finish loading and shipping will update.

Thanks to community member CyanMarmot641 for finding this deal.

About this item:
  • Intuitive Design. Simply close the lid and press the button to disinfect for 10 minutes.
  • Approved high germicidal efficiency. 99% sanitation effect. UV-C light effectively kills up to 99% of harmful germs and bacteria, including E. Coli, Staphylococcus , and Candida albicans.
  • Can also be used to sanitize your daily items such as glasses and accessories.
  • Packaging includes: UV Sanitizer with Wireless charging, USB Type-C Cable, User Manual (Wall Charger NOT included)

Editor's Notes

Written by persian_mafia | Staff
  • About this deal:
    • Our research indicates that this is $3.89 lower (17% savings) than the next best available price from a reputable merchant with prices starting at $22.88 at the time of this posting.
    • This deal price matches our previous frontpage deal from January with 84 thumbs up.
  • About this store:
  • Reviews:
    • This item has received an average rating of 4.4 stars out of 5 based on over 2,300 Amazon customer reviews.

Original Post

Written by CyanMarmot641

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92 Comments

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Feb 8, 2022 9:28 AM
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Joined Mar 2021
OrangeHamster6268Feb 8, 2022 9:28 AM
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Bought like 10 of these for $7 each from microsoft ebay few months back. Been giving them out as gifts to friends/family
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Feb 8, 2022 11:08 AM
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Joined Dec 2003

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Feb 8, 2022 12:16 PM
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overzeetopFeb 8, 2022 12:16 PM
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I just got mine in the mail. A coupe of observations:

1. The UV production is from 4 fluorescent micro-tubes, two at each end - or maybe a U-shaped, not LEDs. It's not the same as the UV tube in my phillips toothbrush (E17). Best guess is it's something like this [diytrade.com]. Based on the opaque interior, I would guess that what ever side you place face down (back side for charging) gets a relatively low dose, as would the middle of the top side (screen).

2. The box volume is very large, and easily fits my iPhone 13 Pro Max with a Spigen Tough Armor case (3-5/16 x 6-5/16 x 9/16). Best I can measure, an item which is 3.75"x7.5"x1.1" will fit with the lid closed

I've not really had a chance to play with it or otherwise test the output.
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Feb 8, 2022 12:45 PM
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Joined Feb 2008
overzeetopFeb 8, 2022 12:45 PM
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Quote from MisterBlue View quoted comment :
How do you know if this works at all? Does infrared light really kill germs?
It's UV-C at 253.7 nm, the same wavelength used by water and air purifiers, as well as hospital UV surface purifiers. https://www.americanairandwater.c...al-uv.html

Now, whether it works or not depends on the dose, and that is only partially related to the power of the source and the time the target surface is illuminated. https://www.americanairandwater.c...dosage.htm (no, covid is not on that chart, but influenza is). If you want the C-word dosage, one study [nature.com] is one study (3700 uWs/cm2), and a further, more comprehensive study here [asm.org] found that 1 log decrement (killing 90% of a culture) required between 1200 and 6000uWs/cm2 over 3 studies. A fourth study required over 60,000uW/cm2, but the authors in the second link felt that the test setup may have been flawed for that study. The second study found that 222nm was ideal for inactivation of Covid, but that 254 worked with lower efficiency (higher J/cm2 per log dec)

The short answer is that we don't know the spectral efficiency of the lamps or the wattage for this device, so we can't even begin to determine what the average dose would be, much less the specific dose on the various parts of a phone from the two sources at the ends of the cavity (it can be calculated with raytrace techniques or with hand approximations, but will vary by phone geometry). The only thing we do know is that it's a 600 second cycle. You can't use the "output" from my link in the previous post as data is wrong - they claim a 2000uWs/cm2 value, but that's like claiming how loud a sound is, in dB, without knowing how far from the source you'll be. All I can say is that, based on other 253.7nm tubes, the total power emitted is going to be less than 3W, and probably less than 500mW. The interior of the case is around 500cm2, and I'd be surprised if the view factor to the middle of the case was 0.01 with a phone installed. 500mW x 600s / 500 cm2 * 0.01 = 6mWs/cm2 or 6000uWs/cm2 or 90-99% efficient. That answer is wrong, btw, because of all the assumptions I made. Taking the low end, you should run a phone at least 5 cycles to consider it clean for common, every day viruses and bacteria (99.999 - 5 log dec - is usually considered decontaminated, though some people say 6, see my disclaimer). Taking the high end, 1-2 cycles is good. In fact, the top and bottom ends of the phone will easily get this...it's the middle we're worried about.

Disclaimer: I'm not a virologist or epidemiologist. I'm an aerospace and structural engineer with formal training in radiative transfer and fluid flow, with practical, professional experience in optics, spectrometry, material science, and structures. What I *can* say is that the information above is how an engineer would approach a device made to kill microbes with EM radiation and the numbers are probably not too far off. It's not rocket science, but it's not as simple as calculating mileage or paint coverage.
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Feb 8, 2022 1:12 PM
345 Comments
Joined Jun 2019
Skyfire727Feb 8, 2022 1:12 PM
345 Comments
note::

you have to flip the phone every 5 minutes - as it only "cleans" one side at a time

but if you ever find the "phonesoap" device on sale .. you dont need to flip

the phonesoap was on sale months ago at $12-$18 is a better deal IMO
Last edited by Skyfire727 February 8, 2022 at 05:15 AM.
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Feb 8, 2022 8:01 PM
445 Comments
Joined Mar 2020

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Feb 8, 2022 8:04 PM
282 Comments
Joined May 2008
AvgasFeb 8, 2022 8:04 PM
282 Comments

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Quote from GreenHill9156 View quoted comment :
WTF ya'll doing with your phones where you need to sanitize them?!? Maybe cut down on the porn a bit instead, lol!
wow...
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Feb 8, 2022 8:20 PM
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Joined Sep 2013
luckygeckoFeb 8, 2022 8:20 PM
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I keep one on my bathroom vanity top. I UV cycle my toothbrush in it every few days. When I'm in the shower, it charges my phone. Seems reasonable enough since I got a couple free from Samsung when I bought other items. (via promotions or points)
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Feb 8, 2022 11:34 PM
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Joined Aug 2011
luvbooxFeb 8, 2022 11:34 PM
1.4K Comments
"How do you know if this works at all? Does infrared light really kill germs?"

This is ultraviolet light, which is towards the opposite end of the spectrum from infrared- short wavelength, rather than long wavelength. That said, yes, UV light will absolutely kill germs, given enough of a dosage. It will kill most anything, given enough of a dosage! Smilie Not sure whether this device actually provides enough UV light or not, though. If you leave it on for long enough it would at least reduce the number of surviving germs on it.
Feb 8, 2022 11:49 PM
11.2K Comments
Joined Sep 2014
ash78Feb 8, 2022 11:49 PM
11.2K Comments
It would be amazing if we could shine this light inside our bodies, you know, make Covid disappear by Easter!

…2029

/what is this a tanning bed for ants?
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Feb 8, 2022 11:56 PM
741 Comments
Joined Nov 2015
Harriet_TubgirlFeb 8, 2022 11:56 PM
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These are really cheap in the clearance end caps at Home Depot and Lowes. $5-7
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Feb 9, 2022 12:31 AM
11 Comments
Joined Aug 2009
chas52Feb 9, 2022 12:31 AM
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Has anyone else noticed that slickdeals is becoming more unreliable, less truthful? This post like 10% or more maybe at times 50% above the "new above here" line are not new. What's the deal slickdeals!
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Feb 9, 2022 2:12 AM
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Joined Jan 2009

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Feb 9, 2022 2:16 AM
14.5K Comments
Joined Sep 2005
HapShaughnessyFeb 9, 2022 2:16 AM
14.5K Comments
These low-powered sanitizers are essentially useless and can be dangerous:

https://www.cbc.ca/news/canada/ma...-1.5912052
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Feb 9, 2022 4:28 AM
187 Comments
Joined Jan 2011
workinghard4Feb 9, 2022 4:28 AM
187 Comments
Actually ebay won't allow them to be listed anymore

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