Some info on UV

[Pydpiper]

Both, it is an LED flashlight that emits UV light. A typical LED is what's called a 5mm LED, they can produce any color. Actually ALL LED's make blue light, they are coated in phosphor to create the color we want like a normal white, or red or green.. UV is invisible, but to get a cheap UV light it will appear to have a purple tint to it like in my photos.
The light in my picture is just a cheap china light, the body is used to hold LED's from every variety, it doesn't surprise me you have one that looks like it. I have a few, some white light, some red..
Follow the link at the bottom of my first post, you will see what I mean.

do you mean UV flashlight or LED flashlight, i have that same flashlight you have in the picture and it is a different light from it then all my other LED flashlights.......bob

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[bob1961]

yeah i got that light from walmart that came with red and blue snap on lens to look for blood with the blue one if i remember right....i'll have to check that light out now....it is useless in the dark past 4 feet or any kind of light mist in the air....i haven't touched it in years i have a mini mag as my blood trailing flashlight with the krypton bulb in it still......bob

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[bob1961]

yeah bugs i have older cotton/flannel camo that is so dull, plus i wash them in baking soda to eliminate any phos in the regular clothes detergent.......bob

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[shafferm]

Actually ALL LED's make blue light, they are coated in phosphor to create the color we want like a normal white, or red or green..

Pyd,

The semiconductor material used to produce the LED accounts for the color output, not all LED's produce blue light. A good portion of the white colored led's use a blue led with a phosphor to give the look of white light.

[maple]

Funny.

My Light expert says you can't put UV through a lens or filter since they block out almost all of the UV. He says only an unshielded tube gives off sufficient UV.
Is he behind the curve? What you have sounds pretty good.

[Pydpiper]

You can run UV through a lens or filter, a decent lens, or window as they are called on a flashlight should not alter the light much, higher quality windows such as sapphire will be more efficient than the plastic commonly found on cheap lights. There are specific things meant to filter UV, like those in fishing glasses.
IR can be filtered too, but significantly less efficiently.
The light in my pictures uses inexpensive 5mm LED's, not to be confused with higher end emitters.
Again, if you have a light that has the 5mm LEDs then chances are you have a blue LED that is coated, that is why cheap lights tend to have a blue tint.
UV glass that is found in most sunglasses, many homes and various other places will stop a great deal of harmful UV. Lots of people discover this after having new windows installed in a home, the house plants that once were striving are now wilting, due to a lack of UV.
There are LEDs that use other means than phosper to alter color, but that is a larger, ever changing topic.

Funny.

My Light expert says you can't put UV through a lens or filter since they block out almost all of the UV. He says only an unshielded tube gives off sufficient UV.
Is he behind the curve? What you have sounds pretty good.

[gerald strine]

So if we could get the deer to wear sun glasses we would be all set.