You are not logged in.

  • Register to access all forum features  

#26

BigWave
Member
From: Melbourne
Joined: 19 January 2016
Posts: 4,611
Member
11 February 2020 01:49 pm

Completed and powered on.
Very little UVC light output.
Stupidly, I ordered a ZWB1 filter, whereas this UVC lamp requires a ZWB3 filter sad
So, another few weeks wait until the correct filter arrives.


GPX-4500, GPX-6000 & Direction Finding Daughter

1 user likes this post: goody2shoes

#27

LoneWolf
Member
From: Gold Coast, QLD
Joined: 12 April 2016
Posts: 4,691
Member
11 February 2020 03:22 pm

Ooops BW...

That's a bright torch Sand Surfer... I think you will find the 'UV' is a 'Black Light'..... Ok on some minerals but not in the UV Spectrum...

That would be good in the bush at night tho. Lots of Fun.. big_smile

We plan to build a 'Home use' UV light first... then move into the Field Lights... They will take a bit more to get up and going... But they won't be as expensive as most that are out there...

You could always use a generator to power a home light in the Field... That would work in most areas that I know where these minerals hide... pickshovel

LW...

Last edited by LoneWolf (11 February 2020 03:27 pm)


Growing Old is Inevitable.... Growing Up is Optional.... Union Proud and Union Strong... A.M.W.U Active Member....

2 users like this post: sand surfer, goody2shoes

#28

sand surfer
Member
From: bundaberg, QLD
Joined: 21 April 2016
Posts: 911
Member
11 February 2020 04:48 pm

Thanks for that lone wolf,what have i done cry
yes it is a bright light you can see the blue light on the kitchen floor in the middle of the day smile
looks like i have got a expensive scorpion hunting torch lol
Ok i will have to wait and see what you and big wave come up with in the near future smile


AT PRO international,1 pick ,1 pelican pick,shovel,sieve's,pans, 8" gold rat dream mat river sluice,crazy crusher,elbow grease and a back that scream's don't do it

2 users like this post: LoneWolf, goody2shoes

#29

BigWave
Member
From: Melbourne
Joined: 19 January 2016
Posts: 4,611
Member
11 February 2020 05:49 pm

Guessologist wrote:

It would be interesting to see if performance was changed at all in a meaningful way later on with the use of a fan regardless of heat issues. Some/many bulbs create ozone which strongly absorbs UV-C so it's best to vent it out if it's in there. I guess a sniff test would tell you if a lot of ozone being made.

You were quite correct Guessologist and I thank you for your input.

The lamp that I bought does have a 10% 185nm spectral omission, which creates a lot of Ozone.

These 254nm germicidal lamps come in Ozone and non-Ozone variants (the non-Ozone variants use a Chemical doping of the Quartz to suppress the 185nm emissions).

I'll start looking for a non-Ozone emitting lamp such as the Philips TUV PL-S series.

Last edited by BigWave (11 February 2020 06:19 pm)


GPX-4500, GPX-6000 & Direction Finding Daughter

2 users like this post: LoneWolf, goody2shoes

#30

goldierocks
Member
Joined: 10 January 2015
Posts: 3,310
Member
07 November 2020 09:19 am

Good to see BigWave discussing uv lamps. There has been some previous discussion of uv lamps - it is good to get the right lamp as some are pretty useless.1604701185_fluorescent.jpg


Robert Benchley...
I have kleptomania, but when it gets bad, I take something for it.

1 user likes this post: goody2shoes

#31

Adrian ss
Member
Joined: 08 December 2018
Posts: 295
Member
11 March 2021 06:41 pm

There seems to be quite a few AA battery powered LED UV long and Short Wave torches on ebay.. 254 nM & 395 nM
I have one of each and they seem to be ok but not much range.

Also have Gemmologist type LW & SW light boxes. The above torches perform quite well.
The uranium glass on the "Interesting Stuff Under UV" topic was illuminated by this from 2 foot dist:

1615448438_rscn1960.jpg

1 user likes this post: silver

#32

BigWave
Member
From: Melbourne
Joined: 19 January 2016
Posts: 4,611
Member
11 March 2021 09:15 pm

The 395nm gives off too much visible violet to be effective. Get yourself a 365nm torch like the Convoy S2+ and you'll find it much better.
They even provide a filter for you to insert which makes it even better.

Last edited by BigWave (11 March 2021 09:15 pm)


GPX-4500, GPX-6000 & Direction Finding Daughter

3 users like this post: goody2shoes, silver, LoneWolf

#33

Detecta
Member
From: Darwin
Joined: 15 January 2017
Posts: 26
Member
11 March 2021 09:55 pm

I bought this one, it work's well. https://www.fluorescents.com/products-c … v-led.html

1 user likes this post: BigWave

#34

Adrian ss
Member
Joined: 08 December 2018
Posts: 295
Member
12 March 2021 09:59 am

Have this one that works well and is focusable. Has a good range of severl mtr and is 365nM. Solid and well made.
Powered by one 18650 lithium ion bat. Also has a flash/flicker mode. OK for 28 bucks.
Other wavelengths available.

1615503331_rscn1963.jpg

2 users like this post: BigWave, LoneWolf

Top