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UV gels

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super-hero View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote super-hero Quote  Post ReplyReply Direct Link To This Post Topic: UV gels
    Posted: 22 November 2009 at 8:54pm
Where can I get some UV gels.
 
I want to turn some par cans into UV par cans.
 
Is this as simple as adding a UV gel.
I'm not an animal, I'm a human being.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 9:11pm
Incandescent bulbs emit very little UV light so no, it won't work well.

You can get a gel which is a similar colour to what UV looks like on white but it won't be UV light coming out of it.

You need a proper UV light source.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fuzzylogic Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 9:17pm
does work a bit,I put a load of UV gels over the lights in my van for the festi season to great effect lit up the backdrops fine.Dunno about a larger scale though,UV cannon is what you need.

NEIGHBOURHOOD SOUNDSYSTEM
Infinitely baffled.

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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote super-hero Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 9:38pm
Thanks for the replys.
 
I have UV cannons and some UV strip lights, but just wanted a few more options for hire outs.
 
I also have some outdoor floodlights fitted with sodium lamps, do they emit any UV. or do I just need to buy more cannons.
 
Cheers.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote freeytrap Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 9:46pm
not with the sodium bulb in but if you swap it for a metal halide you will get a high enough couler tempratur to produce uv

make shure you get a compatable bulb that will run with the origanal sodium balest and starter i no you can get them for 250w version not looked for outhers
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Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote super-hero Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 10:07pm
I also have a couple of floods with metal hallide lamps fitted, but they are only 70w and 150w versions.
 
The next question is where can I get some UV gels from.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallmike Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 10:55pm
the amount of other light that a UV gel would have to absorb would mean that they wouldn't last long at all!
 
Go UV LED....
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Post Options Post Options   Thanks (0) Thanks(0)   Quote super-hero Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 10:59pm
Cheers Mike.
 
Been looking at UV Led, but they seem to put out more visible light than a UV cannon, so you don't get the total darkness effect that you can get with cannons.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jonminns Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 11:10pm
There is no way of reproducing the effect of a cannon/tube

Therefore you need to put up with purple light or use the real deal
4 ohms is for wimps
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tallmike Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2009 at 11:17pm
get the cannons or floods. every bugger and his dog makes 'em.
 
UV's getting more popular again, no?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ben_Lawrance Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2009 at 12:26am
Lee 181 - Congo Blue has the closest wavelength transmission.
 
However, because it is very deep, you need a massive source behind it to get anything through it. This then means more heat, concentrated very heavily, and the gel burns out very quickly.
 
My record is 19 minutes with 2KW behind it.
 
 
Get real UV - It's the only way.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote super-hero Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2009 at 5:56pm
Cheers guys.
 
I knew the gel idea was too good to be true.
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