Introduction: El-Cheapo Flashlight Hack

I really needed a UV flashlight for my radioactive materials because they look 2000000 times more cooler under UV than anything else. My parents went to a party and they gave these cool little flashlights away for party favors. I had the UV LED's so I decided to mod them for less than 5 cents!

Step 1: Materials

1 Small screwdriver
1 Pair of scissors or wire snips
1-2 ultraviolet or any color of led you want
1 something to test your UV light on (optional)

Step 2: Unscrewy

Grab your screwdriver and open up the case, it should look something like the image below.

Step 3: Remove and Replace

Remove the Ultra bright led and shape the UV led the same way as the Ultra Bright one, make sure you know which end is positive and which end is negative!!!! Install your UV LED the same way your UB LED was.

Step 4: Reassemble

I try and and reassemble my flashlight by sandwiching the 2 halves hot dog wise because that push button falls out easy and so does the actual switch so try and do this swiftly. Once their sandwiched, screw in all of your screws and test it out. You should test it as soon as your 2 halves are together but I felt lucky so I screwed in all the screws and then tried it.

Step 5: Finished!!!!!

You can now enjoy the full benefits of a UV flashlight (or torch as some of you call it) and freak out your friends claiming that your uranium glass are kryptonite crystals!

Comments

author
marshman19 (author)2009-05-20

uranium glass? what's that?

author
conrad2468 (author)marshman192009-05-20

Back-n-the-day they used to add (or dope) uranium to the glass to make a greenish color. It wasn't until recently that they realized radiation was bad for you so they stopped putting it into food ware. If your an antique collector who is afraid of cancer you should bring a Geiger counter to the shop and stay away from the "hot" stuff.

author

do you keep it in a lead container? i dont want a feller 'ibler dying

author
bbear4 (author)fallenspirit1232011-09-09

Celestial solar radiation beats out terrestrial decomposing elements like a trillion-billion-million to one on how much radiation you're exposed to in your lifetime. It's like a brine fish ordering it's french fries without salt to cut back on his sodium.

author

Cancer is completely random....i may get it and i may not...it could be from "background" radiation or it could be from those glass things.....but i keep them in a cardboard box in a drawer somewhere...

author

well yeah good point

author
beehard44 (author)conrad24682010-04-08

lol microwave on  a plate! put your food on the plate and the plate will cook it!
cooking time may vary from 1 hour-

author

actually, I'm pretty sure that the radiation in uranium glass is too small to hurt anyone (generally). They stopped using it in food ware because uranium wasn't available during the Cold War.

author
maruawe (author)2009-04-06

when I changed the light on my light like this ,I used a piece of tape t hold the switch button on until I reassembled the light. I needed a strong led also for another project that I was working on .. haven't tried to use a UV light in the old one But radio shack is on my way home from work .... neat Idea

author
Numb-Nuts (author)maruawe2009-04-07

What is that that is glowing in such an awesome way?

author
conrad2468 (author)Numb-Nuts2009-04-07

URANIUM!!!!!

author
Derin (author)conrad24682009-05-22

You could build a small................ I should shut up right now.The Radioactive Boyscout may be replicated by somebody.

author
conrad2468 (author)Derin2009-05-22

Ive read the book! I also extracted some americium from a smoke detector......you would need a S*** load to build your neutron gun? I forgot its been so long ago.

author
Rotten194 (author)conrad24682009-07-27

Dang, I SOOOOOOO want a copy, but my mom would go nuts.

author
conrad2468 (author)Rotten1942009-07-28

Ha ha ha I'd be glad to send u my extra copy but I can't seem to find it.

author
bbear4 (author)conrad24682011-09-09

I read about it in readers digest. my parents got me that subscription

author
maruawe (author)Rotten1942009-07-28

what she don't know won't hurt her ,But when she finds out , I'm glad it's you and not me........ MOM WAS A HOLY TERROR WHEN MAD.

author
chickenlinux (author)conrad24682009-07-27

naw, just get some americium (a few microcuries is actually probably plenty), and stick a relatively thin beryllium panel over it. It'll cause lots of secondary radiation, which is, in fact, neutron radiation :3 (for informational purposes only)

author
beehard44 (author)chickenlinux2010-04-08

just buy it off ebay or amazon
some sell without hazmat fees

author
Sparkington (author)Numb-Nuts2009-04-08

I think the crystal is fluorite, that reacts to uv light.

author
conrad2468 (author)Sparkington2009-04-08

It is doped with uranium........look it up on www.unitednuclear.comhttp://www.unitednuclear.com/marbles.htm Mine are the same but their the leftover glass that is produced after making these or any other product doped with uranium

author
Derin (author)conrad24682009-05-22

I think a similar method is used to combine nuclear waste with glass so that it will be slightly easier to (SECTOR CONTAINING DATA IS CORRUPTED) the waste.

author
eight (author)Derin2010-06-10

Micro-encapsulation... I had a client which did that to toxic waste. It actually works, but not sure about radioactivity, though...

author
zapper067 (author)2011-08-10

uranium is radioactive it is very dangerous!!!

author
hintss (author)zapper0672011-08-30

and uranium ore isn't

author
zapper067 (author)hintss2011-08-31

huh????????????

author
hintss (author)zapper0672011-09-01

uranium ore just looks like rock, is slightly radioactive, and I think it is flourescent. uranium is a metal that is refined by crushing uranium ore and centrifuging it.

author
dagenius (author)2009-04-12

jeez, Uranium, how come you are still here? That is soooo dangerous

author
chickenlinux (author)dagenius2009-07-27

Uranium glass, about 10 plates worth, only increases the count on the counter by ~.08 mR/h, generally speaking. Mind you, the plates in question are thin and contain little uranium, sometimes, a VERY doped butter dish will make it go up ~3.5mR/h, and, as long as ya don't walk around with it taped to your head 24/7, you'll be fine. That's really not much radiation. They (legally) sell boxes of uranium ore *guaranteed* to go to over 100mR/h, but that's _only_ beta and gamma radiation. That's what should be worried about, not his uranium glass.

author
dagenius (author)chickenlinux2009-08-02

late? look at the date on my comment.

author
hintss (author)dagenius2011-08-30

not as late as this!

author
conrad2468 (author)dagenius2009-04-12

Low cpm so my chances of getting cancer are REDUCED.....

author
fallenspirit123 (author)2009-06-12

wasnt that rock, flourite???

author

I doubt it....unless flourite is radioactive....tested with my Geiger counter from Russia.....

author

O ok nevermind then because flourite glows under UV also

author
lemonie (author)fallenspirit1232009-06-15

Very short though, I've not been able to find a LED at the right wavelength (yet) L

author
conrad2468 (author)lemonie2009-06-15

EBAY!

author
lemonie (author)conrad24682009-06-15

Go on then, link one. L

author
conrad2468 (author)lemonie2009-06-15

Well, anything can be found on EBAY...i wasn't meaning anything specific......I thought u hadnt checked there yet...

author
lemonie (author)conrad24682009-06-16

Specifically - well under 400nm is hard to find. EBay is full of torches and bundles of the usual. L

author
cptully (author)lemonie2010-02-02

Here you go:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=524939&k=uv%20led

author
lemonie (author)cptully2010-02-02

I see two products on that page, both are 405nm, not under 400.

L

author
junits15 (author)2009-07-12

and you have radioactive materials around your house because......

author
conrad2468 (author)junits152009-07-12

Serious: I like to collect odd stuff Kidding: Im stocking up on them because my terrorist friend knows how to make a bomb.........

author
Einarjon (author)2009-05-01

I think you have the + and - mixed up.
The cathode (minus) should be bigger inside the led. http://www.kpsec.freeuk.com/components/led.htm

But as long as you make sure to do it the same way as the old LED (right or wrong on both) - it should be fine.

About This Instructable

20,916views

24favorites

License:

Bio: I live in a small town where anything can happen! ESPECIALLY IN MY NEIGHBORHOOD!
More by conrad2468:Flip Mino HD (relatively ) Cheap Water resistant housingDet box 2!El-Cheapo Flashlight hack
Add instructable to: