I have a cheapo coin cell uv led light, and when I point it through a pair of UV-blocking sunglasses it still makes stuff on the other side fluoresce. It's probably 395mm or something like that. Maybe the glasses block more at shorter wavelengths.
CPF Only Pre-order: Arc-AAA Ultraviolet
- Thread starter Gransee
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Gransee
Flashlight Enthusiast
The previous UV models also were rated for the same number of hours and warranty. Never had an LED go dead- yet. So there is not a lot of precident to draw upon. The head could be swapped easily enough.
peter
peter
hank
Flashlight Enthusiast
How did I miss this so long? Order's in the queue now, thanks Peter.
Kids, take the eye protection seriously. Your pets and children aren't protected and their eyes aren't old enough to have yellowed lenses that help protect you.
If you believe the "100%" claims on any treated lenses, take them to your opthalmologist who can put them on a meter and tell you the truth. Or see if you get fluorescence shining your UV light through your supposedly 100% lenses. Advertising is "puffery" and legally you are expected to know not to believe advertising claims are true -- that's the law in the USA. Sorry.
Kids, take the eye protection seriously. Your pets and children aren't protected and their eyes aren't old enough to have yellowed lenses that help protect you.
If you believe the "100%" claims on any treated lenses, take them to your opthalmologist who can put them on a meter and tell you the truth. Or see if you get fluorescence shining your UV light through your supposedly 100% lenses. Advertising is "puffery" and legally you are expected to know not to believe advertising claims are true -- that's the law in the USA. Sorry.
Gransee
Flashlight Enthusiast
If the unit failed while under warranty, the cost is zero of course. For any other reason, I could sell the head for say $20 each. But before you do that, drop me a line.
peter
peter
Gransee
Flashlight Enthusiast
Btw, the UV page is completed on the website.
peter
peter
hank
Flashlight Enthusiast
One question --- for very cold weather, I like the Energizer lithium cells (for my old PDA, and for flashlights) because they don't lose power at low temps.
Any concern using these (1.7v nominal, I think, when fresh)?
Any concern using these (1.7v nominal, I think, when fresh)?
In addition to the puffery of advertising (which is much more closely monitored when the advertising is regarding medical performance, by the way), you also have to realize that fluorescent items do react to near-fluorescent wavelengths, as well; just not as much. If you have any doubt, take a blue LED and shine it on a fluorescent poster; you'll see what I mean.
Also, since my glasses are not of the wrap-around kind, I don't trust them to block 100% of the UV light that can enter my eyes; I merely trust them to greatly diminish it, seeing as how they block a great portion of it. And believe me, they do block a great portion of it. All I have to do to verify this is to have my UV light be the only light source in the room, and take my glasses off. The discomfort is immediate, and it is alleviated when I put my specs back on.
I did not mean to say that it would be safe for me to stare down the business end of any UV-producing source for any length of time
, even with my glasses, but they will surely minimize the effects of my own stupidity when I glance into the beam. (Because, trust me, I have done this.
Shucks, look at my avatar... I stared down the Beast II at about one yard! :green: To some degree or other, we all do this "Stupid Human Trick" at some point, with each light we own or even examine. It's part of our disease. )Anyway, thanks for protecting the naive reading this thread, and thanks for letting me clarify my statements.
I don't give out the eyewear when I give the lights. Does Spencer's Gifts give out (or even recommend) protective eyewear when they sell UV lights or replacement bulbs? This light is a good UV source, but my own non-medically-trained (I feel it's REALLY important to state that in this context) opinion is that it's not dangerous when used as intended, and as I personally believe most adults would use it. I would NOT give this light to most children.
The_LED_Museum
*Retired*
Just letting everybody know that I received mine this afternoon - right on time! :thumbsup:
The_LED_Museum
*Retired*
So far, I think it's a great little light!!! :twothumbs
It reveals fluorescence in items surprisingly well; I think that 10mW value is very close to being accurate. :thumbsup:
I'll be publishing my evaluation of it somewhere near 6:00am PDT tomorrow (10-02-07).
It reveals fluorescence in items surprisingly well; I think that 10mW value is very close to being accurate. :thumbsup:
I'll be publishing my evaluation of it somewhere near 6:00am PDT tomorrow (10-02-07).
The_LED_Museum
*Retired*
I don't have *ANY* type of epoxy at my disposal, let alone a UV-cured one. :shakehead
trivergata
Enlightened
As far as BS advertising in UV protection, I know Oakley is legit - I own one of the (more or less) cheaper pairs, and they keep my A19 from making anything glow!
Josh
Josh
Lampje
Newly Enlightened
Peter, can you please answer this question. I want to know this also.
Gransee
Flashlight Enthusiast
The driver is the same so there is no problem with using 1.7v lithium cells.
peter
peter
Lampje
Newly Enlightened
Thanks, I knew that, but I thought; better safe than sorry.
The light works great btw. :twothumbs
The light works great btw. :twothumbs
Man, mine should have been here today, I looked at the fedex tracking and the only info is that Arc had transmitted the data to fedex, that's it. I emailed Arc about it, man, I had hoped to have it today! Doug ps, it said I should have received it today by 7 pm. dang!!!
ps, it said I should have received it today by 7 pm. dang!!!
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