Help Selecting a 365NM UV Flashlight

LED Flashlights – General Info 18650 Flashlights
1

I need a fairly powerful
UV Flashlight with little or no visible light to demonstrate some UV Glow Powders and Dyes.

A flood to Zoom single 18650 at 3 to 5 watts sounds perfect but-

Will it be mostly invisible or also have stray frequencies in visible band ? Will I need a filter or are some 3 to 5 watters mostly pure UV invisible light (preferred).

Power should be enough to demonstrate in a dim but partially lit area ( dim Nightclub etc.)

Any ideas about a true 365nm model that will work well for this purpose ?

Thanks.

2

I don’t know of any decent zoomie UV lights. They could be out there, but I kinda doubt it.

Two suggestions:

1. Jaxman U1. Good UV light with a bandpass filter to block the stray visible light that comes out of most UV emitters. Its got good output, too.

2. Convoy S2+ UV. Very good UV light that uses a Nichia UV emitter which has less white light leakage to start with. More overall UV output than the Jaxman, but does have just a bit of white light in there, too.

I own both of these lights, so if you have questions I’m happy to help.

3

Need something in that range too

Am thinking about ordering this one from unknown seller
Comments say it works. ~$9

or this not to expensive one

But I lean to the star and LED, got plenty of torches to use for it

Need something to check the yard for cat pee.

Yeah, Simon, I am going to message him to see if I can buy that nichia without a flashlight.

4

I see the Jaxman on Ebay but in China so hard to get quick but looks well made.

Of the two lights will either light a fluorescent pigment or material at 10 or 20 feet in fairly dark room ?

I am going to post a few on here to see what you think when I find them
I notice a few 4 watters but expensive …
Thanks for your help.

5

Well I ordered the 365UV on copper 20mm star

And no reaction from Simon if one could be ordered from him (if he says yes I will order that as well since I trust him)

6

For what you want, I’d suggest the UV Convoy S2:
https://www.fasttech.com/products/0/10002364/3760700-convoy-s2-uv-purple-light-led-flashlight
…but replace the lens with one of these UV-pass filters to block out the visible light:
http://www.gearbest.com/led-flashlights/pp_266823.html

I have a similar light, 365nm emitter and filter, and it’s a great little UV light…
Wear UV filtering glasses…

7

Don’t forget Simon and Convoy are closed for CNY and moving his warehouse. Probably no answers from Simon for a while.

8

Aha thanks
This morning a C8 at lens and OP reflector were shipped, must be drop shipping then

9

I bought the semileds (?) 365nm UV led from led4power, and the filter to block out visible light and it works great, really strong UV. Apart from that I would suggest convoy s3 host and cca 700mA driver

10

$7.39 with tracking
Good reviews
http://www.aliexpress.com/item/AOT-3W-365NM-UV-Blacklight-Led-Flashlight-for-Gems-Jewry-Detecting-Baby-Stuffs-Scorpion-Hunting/32337908521.html?spm=2114.01010208.3.2.buRH88&ws_ab_test=searchweb201556_3,searchweb201644_1_505_506_503_504_301_502_10001_10002_10017_10010_10005_10011_10006_10003_10004_401_10009_10008,searchweb201560_2,searchweb1451318400\_–1,searchweb1451318411_6452&btsid=0e4b1849-b361-4a65-bd0c-fb3ad8012cce

11

Reply from Simon:
_simon mao
2016-02-21 05:24
sorry ,i dont sell nichia UV led seperately ,it is not allowed by the nichia company_