How to turn your phone into a UV light (and see hidden messages)

We've seen countless clips of people making UV lights out of their smartphones, so we wanted to give it a go for ourselves and see if it actually works!

[@bike619]

Thanks for providing exactly zero useful information.

[@inksanser1156]

Guys for context, you take a small strip of clear sticky tape and place it over the flashlight LED on the back of your phone. Then you gently color the area directly above the LED with a blue marker. After that you place another piece of tape over the first one, being careful not to smudge the ink. After that you repeat the first step but this time using the purple marker instead.

[@yourtv5513]

awesomeeee

[@samanthamartinez5147]

How many layers?

[@inksanser1156]

@@samanthamartinez5147 Depends. I did it with two layers, but depending on how well you cover it, you might need more.

[@takami_0710]

He didn't provide info on how to make it basically just put a piece of tape over the lens cover it blue then put another piece of tape and color it purple.

[@fzr850]

You just say how to do it....

[@wobbly_bubbly1235]

But its not UV LIGHT
Its just purple light. Our phones cannot emit uv light. The reason why uv light purple is because some visible light passes thru.

[@Varticity]

@@wobbly_bubbly1235 thru bruh it is through

[@jexxelcreates9693]

​@wobbly_bubbly123 actually most lights, including phone flashlights, have uv light! But blacklights have a way higher concentration or uv rays

[@CarlosLopez-ko8xm]

How do you live with yourself?

[@lolaranogajac9704]

not working

[@justkelly2]

Why the hell is this titled "How to" when you don't actually tell us how to do it

[@AbdulRehman-nz3kx]

Nice

[@user-vq3mq7ev1i]

This was just way let the world know that Tom sells meth.

[@onimafia614]

Does it need to be sharpie or can it be marker?

[@prod.5810]

it can be with

[@prod.5810]

both*

[@L-dink-p3h1z]

Sup

[@lixm_UD]

it works awesome

[@lixm_UD]

but i did like ten layers
lol