I did something similar to this once with a kid's electronics set I once had and had no clue what I was doing. I simply wired my green LED straight up to my 12V battery and noticed it glowing orange. I only disconnected it once I saw smoke coming out and a very small flicker of a flame. Needless to say, I couldn't get it to glow again after that.
Electronics and I don't mix, but I'm still cool with software.
@ReallyCreamy Actually you can use AC mains. But you'd need a high value resistor (around 10Kohms with a power rating of >1Watt) and a diode/rectifier--both in series with the LED--to limit the current and convert AC to DC. Or you can dispense with the rectifier and use two LEDs in parallel but with their anodes and cathodes in reverse from one another. But a resistor wastes too much power. An AC mains rated capacitor would be a better choice. Its power dissipation is negligible
i did that once with a blue one. increase the voltage slowly and for short periods of time and it will emmit purple light ;) if u dont do this too long the diode will not get destroyed and keep its normal light when powered with the correct voltage
@didogazeto 4kV lolwut? 400 V only man lol. Starting at around those volts, the LED's resin case will instantaneously explode, and the silicon in it is basically gone, like, vaporized lol. IDK what will happen when you start pumping kV's, never mind kV's with huge AMPS
@AcousticBruce There are formulas to compute a diode's effective resistance at different currents and temperatures, but for simple projects it's generally faster to just look at the diode's forward voltage drop. (See my video on diodes)
This also works with red LEDs but in the other direction, some of them will turn yellow or even green with increased current (others just become more red); the changes are due to heat modifying the properties of the semiconductor material (there are various different substances used for the same colors hence the different results).
If you do this, be careful, as often the top half of the resin encapsulation of the LED cracks due to stress, and explodes off... and possibly into your face! Believe me, this is coming from a 36 year old electronics engineer who has exploded more electronic components than he can remember! :-P
i wonder if the plastic casing around the actual diode can be removed, and if it is, will it still work or does it need to be sealed off from the air? arent some LEDs actually white in color or something, and the color of the LED determined by the color of the plastic casing?
@dmkitsch For the LEDs I have, super bright 5mm, 10mm, 5W P7, they all limit their current without a resistor. For example my 5mm led draws 20 mA at 3.8V even though its connected to a 2 amp supply. He said hes varying voltage to change the current.
you can increase the voltage or you can use a constant current source, you know with a pnp and emittor determines the current, put a pot there and change the current, put your led in the collector branch. make sure your tor has a heatsink
those things smell like s**t when you fry them
cornholio3456 20 hours ago
green led, yellow light
mind=blown
brianawesome100 2 days ago
Next time use a car battery
discremal 4 days ago
За что его так?
IIIIDiMbI4IIII 5 days ago
terminator .....
mightyfinejonboy 6 days ago
You let the magic blue smoke out!
dehve86 1 week ago
here you can see exactly what hapens, when it burns thru ^^
schoggi555 1 week ago
I'm in ur LED alterin ur quantum well
JLConawayII 1 week ago
That's why LED traffic lights are a bad idea!
totalrandomcrap 2 weeks ago 2
0:33 a LED turns into SED. Smoke Emitting Diode
rgorazd 2 weeks ago 20
@rgorazd I wish thumbs up was enabled on this video!
logos2600 2 weeks ago in playlist More videos from Afrotechmods
red my ass...
ikkel33 2 weeks ago
You broke it!
viciokas1993 2 weeks ago
@viciokas1993 /watch?v=wdX8y_xkz14
iEugene1994 1 week ago
more like "Green LED turns black"
odv000 3 weeks ago
Mind. The smell is a hurt in the nose. By the way, most LEDs contain cyanid.
transistorbaluba 4 weeks ago
Автор, ты просто сжег светодиод и не более.
iEugene1994 4 weeks ago
this happen to my xbox controller XD
xXPBSXx1 1 month ago
I hate when that happens accidentally. As in selected wrong resistor or errant blob of solder on the board caused full 12V to hit the LED.
davida1hiwaaynet 1 month ago
From red to dead.
WKmugen 1 month ago
The LED was taken by the dark side
Chrisbunna22 1 month ago
LOLz,never tried that :)
timsot 1 month ago
LEDs always look like PENIS!!! :P
TheKiller982 1 month ago
I did something similar to this once with a kid's electronics set I once had and had no clue what I was doing. I simply wired my green LED straight up to my 12V battery and noticed it glowing orange. I only disconnected it once I saw smoke coming out and a very small flicker of a flame. Needless to say, I couldn't get it to glow again after that.
Electronics and I don't mix, but I'm still cool with software.
WarriorIng64 1 month ago
first it turns red then liquid... awesome!
idvdm 1 month ago
led.. RIP
santi308 1 month ago
I had one explode in my face once, so be careful!
metalmoto 1 month ago
yep thats busted
iduno3point14159265 1 month ago
SUPERNOVA!
CB0T 1 month ago
How does overcurrenting change the properties of the band gap so that a higher wavelength (thus lower energy) than usual is emitted?
TheMusicalGiant 1 month ago
Alive LED turns dead.
teknown 1 month ago
Ohhhhh you killed him =(
Belial1247 1 month ago
Overclocking an led....
gentrythomas1 1 month ago 32
0:33 POP GOES THE LED
TheLolman223344 1 month ago
It was time to stop when it turned red, when it was green it was ok, when it was yellow it was time to speed up.
JoanJettforever 1 month ago
it is so easy
1 put your LED directly in a 9V battery and
2 let it burn and the LED will gone transform in a red LED
that was all :)
mara5466 2 months ago
Poor little guy, he never even had a chance.
christiantorelli 2 months ago
Its Yellow Turns Red :p
Robloxblacky 2 months ago
My friend put an LED into a socket. It went boom and there was no colour :(
ReallyCreamy 2 months ago
@ReallyCreamy To high voltage, "Normal" leds require 2 - 3 volt
itslife56 2 months ago
@ReallyCreamy Actually you can use AC mains. But you'd need a high value resistor (around 10Kohms with a power rating of >1Watt) and a diode/rectifier--both in series with the LED--to limit the current and convert AC to DC. Or you can dispense with the rectifier and use two LEDs in parallel but with their anodes and cathodes in reverse from one another. But a resistor wastes too much power. An AC mains rated capacitor would be a better choice. Its power dissipation is negligible
emactan 2 months ago
I can see you in the led!
oOoOoAToOoOo 2 months ago
i did that once with a blue one. increase the voltage slowly and for short periods of time and it will emmit purple light ;) if u dont do this too long the diode will not get destroyed and keep its normal light when powered with the correct voltage
TheBIizzardStorm 2 months ago
the LED is crying :'(
REDd43m0n 2 months ago
Nothing happend
Oh wait
I'M RED GREEN COLORBLIND DAMN!
azncardninja169 2 months ago
ELECTRONICS TURN EVIL!
c00lkarten1 2 months ago
Poor Diode, never knew what hit'em,
HystericallyRoxas 2 months ago in playlist Mais vídeos de Afrotechmods
0:32 fail
Marcel0132 2 months ago
Probably the funniest thing I have ever seen.
TypicalRararian757 2 months ago in playlist More videos from Afrotechmods
Xbox LED!
TheSmokekoke 2 months ago
erm green??? but nice anyways
gunhoo12 2 months ago
That brown liquid that starts to squeeze between the epoxy and the metal, is that the chip melting? I'm surprised it's still lit up at that point.
weylin6 2 months ago
ok... now turn it green again^^
Demadafaka997 3 months ago 2
what a terrible smell they make when they finally break the smoke out
mscott87 3 months ago
It makes sense.
blakegriplingph 3 months ago
i've got to go now
Elastane 3 months ago
This kills the LED.
imeddy 3 months ago
Током на грани держали
Rurkenk 3 months ago
Its Orange Then Red Lol...
giovanni1251 3 months ago
queimou kkkkk
1wederson 3 months ago
green means go yellow is caution and red means hope you don't break anything
PlayingPanda 3 months ago
that poor led D: how could you?
TogoTheHermit 3 months ago
i maded a white LED become light blue LED just by plugin 2 AA bat and wait...
MarkGameVid 3 months ago
One-shot traffic signals
G0IFI 3 months ago
Green LED turn black )
Smitakus 3 months ago
The story of Microsoft's Xbox 360's Life
Scottishtechkid98 3 months ago
Thats how the red rings happen on the xbox.
zVoltageCinema 3 months ago
changing the band gap energy by overheating them? Might return to normal if you left it to cool down (then again it's just as likely permanent).
Firebirdharris 4 months ago
How to confuse someone thats color blind D:
TdSSPEED 4 months ago
LED's fail when you overdose anything.
LED's go EPIC FAIL when you pump 400v into them. It was fun that day...
hbar45 4 months ago
@hbar45 lol tested on 8V and it burned out and start smoking...wonder whats on 4000V LOL xD
didogazeto 3 months ago
@didogazeto 4kV lolwut? 400 V only man lol. Starting at around those volts, the LED's resin case will instantaneously explode, and the silicon in it is basically gone, like, vaporized lol. IDK what will happen when you start pumping kV's, never mind kV's with huge AMPS
hbar45 3 months ago
Do LED's have any resistance?
AcousticBruce 4 months ago 45
@AcousticBruce There are formulas to compute a diode's effective resistance at different currents and temperatures, but for simple projects it's generally faster to just look at the diode's forward voltage drop. (See my video on diodes)
Afrotechmods 4 months ago 32
@AcousticBruce they are diodes... the only resistance is the tiny cables to connect wich is arround 1 ohm...
depending on what AMP the led can handle you should use a resistance.. about 300ohms or so for ordinary leds
MrDragonknight94 4 months ago
@AcousticBruce diode has no resistance if it reaches the breaching voltage, voltage only stays on it constantly ...
JohnMinigun 2 months ago
@AcousticBruce everything has resistance. Otherwise it would be a paradox. Dividing by 0 from Ohm's law lol :D.
LucaTurilli89 2 months ago
@AcousticBruce
RESISTANCE IS FUTILE!
germanejfan 2 months ago 2
i did this in my electronics class lst year, it then blew up nd i got in shit,
froggythegamer 4 months ago
The delicious smell of burning LED's
TickyTack23 4 months ago
This also works with red LEDs but in the other direction, some of them will turn yellow or even green with increased current (others just become more red); the changes are due to heat modifying the properties of the semiconductor material (there are various different substances used for the same colors hence the different results).
ms63129 4 months ago
This happened to me once when i forgot the resistor.
Mine blew up!
plutgamer 4 months ago
hahaha this happen to me once, talking 4m experience the wires get really hawt!
XENOFYED 4 months ago in playlist More videos from Afrotechmods
The video reminds me of when the Terminator from Terminator 2 dies. :(
underwatercookie 4 months ago 61
@underwatercookie I know now why you cry. But it is something I can never do.
Afrotechmods 4 months ago 63
@Afrotechmods So sad D:
zomgwtfbbqbagel 1 month ago
@underwatercookie true..lol
hirofire1994 3 months ago
With enough current you can change an LED into a NED (noise-emitting diode). Single use, of course.
icsgaming 4 months ago
Now connect it to a MOT!!!!
rocketman221projects 5 months ago
Like dying terminator :D
crackmaster88 5 months ago
If you do this, be careful, as often the top half of the resin encapsulation of the LED cracks due to stress, and explodes off... and possibly into your face! Believe me, this is coming from a 36 year old electronics engineer who has exploded more electronic components than he can remember! :-P
unlokia 5 months ago
i stuck that shit in a 9 volt ahahha
DestroyTheseWalls 5 months ago
Tried it myself. Quite interesting.
CassetteMaster 5 months ago
Im looking for a good camera to film this stuff. The picture quality here is excellent. What kind of cam did you use for this?
matttcoburn 6 months ago
ofcourse. it will burn and defective permanently
b0gartz 6 months ago
oh noee it tried to stay red so hard, R.I.P.
myno1fakeaccount 6 months ago
I found this the hard way in my first electronics class when I used 15V instead of 5V to power a circuit
papalevies 6 months ago
But will it blend?
BrookMorrison 6 months ago
Does the chemistry of the LED change?
fingerboy18 6 months ago
IT'S VOODOO!!!!!!!!!!!!!!!!!!!!!
zenix1717 6 months ago
i wonder if the plastic casing around the actual diode can be removed, and if it is, will it still work or does it need to be sealed off from the air? arent some LEDs actually white in color or something, and the color of the LED determined by the color of the plastic casing?
kekejojo1212 6 months ago
what is the science behind the change in colour?
stevenliang96 6 months ago
Ah, I used to do this as a kid all the time =)
jojotjuh 6 months ago
Try connecting one across a 9V battery. I did that once. Got a bright flash and some nice cracking noises.
lumabi25 6 months ago
So, it's changing colour because the energy per electron is decreasing?
Zemnmez 6 months ago
I guessing that the red effect comes from incandescence.
Desmaad 6 months ago
LEDs are expendable...hurt the little buggers...that's an order from the top.
101AOK 6 months ago
it would be cool if you could superimpose the power supply readings!
joshstube 6 months ago
I hate that smell..
PhattyMo 6 months ago
you increased and decreased the mA
matthewtchernev123 6 months ago
I'm confused don't those leds limit current by themselves without a constant current source? Are you increasing voltage to increase current?
ronmann606 6 months ago 2
@ronmann606 Yes
Afrotechmods 6 months ago 7
Comment removed
dmkitsch 6 months ago
@dmkitsch For the LEDs I have, super bright 5mm, 10mm, 5W P7, they all limit their current without a resistor. For example my 5mm led draws 20 mA at 3.8V even though its connected to a 2 amp supply. He said hes varying voltage to change the current.
ronmann606 6 months ago
@ronmann606
you can increase the voltage or you can use a constant current source, you know with a pnp and emittor determines the current, put a pot there and change the current, put your led in the collector branch. make sure your tor has a heatsink
StoesA 6 months ago
0:28 "No Prime you can't die!" "Do not grieve, soon I will be one with the Matrix."
kiyotewolf 6 months ago
oh christmas tree oh chrsitmas tree how big is your afro! :P
coilsinamotor 6 months ago
Dat delicious smell...
Forssa1 6 months ago 2
Use an 1A and it will work again! (mostly red with a little bit of magic smoke)
superdau 6 months ago
If you then reduce the current back to normal, does the new color stay permanently changed?
B1r6m4n 6 months ago 3
@B1r6m4n Yes. I did that a few times during the video but it's hard to tell.
Afrotechmods 6 months ago
@Afrotechmods dosnt the color change back if the led cools down to ambient temperature?
bytebender 6 months ago
@B1r6m4n it will return to original color but will not emit at max(since led is already defective)
b0gartz 6 months ago
LED - Lasting Entire Dynasties, but you managed to kill it in a few seconds only for bringing joy to nerd's faces! I admire you, Afrotech!
iiMPR3SSiiON 6 months ago
Ha! It's like a traffic light for LEDs.
xmaams 6 months ago 16
@xmaams It's 66% of an RGB LED's functionality for 1/10th the price!
Afrotechmods 6 months ago 46
@Afrotechmods except that its permantly changed :D (aka one use of the yellow to red function)
mitpatterson 6 months ago
no Led's were hurt in the making of this video. except one
hanzmole1 6 months ago 72
I wonder what next???
rong111y 6 months ago
LED execution : (
liquidus2172 6 months ago
it will be missed
VCSandARM 6 months ago
I love when it dies, its just turns black :D
maxovitsj 6 months ago
This happened2 me 2.
tassyrox 6 months ago
how does that work?
Matthewrichey 6 months ago
NICE!
HPaisana 6 months ago