Interesting that it didn't explode cold. I thought it would, but I do know that the most dangerous time to change xenon lamps in a follow-spot or projector is when they're hot. Which is coincidentally right when you desperately need to put a new one in. A work colleague had one explode in his face without protection. Fortunately his eyes were OK.

rig that to a motionsensor and put it up as a security lamp

For those who do not know, that bulb is fine, the black "sooting" on the inside is supposed to be there, it is actually the reason the bulb is called a METAL-Halide lamp. The black stuff is the condensed metal (Hg, Na, Mg, Li, etc.. depending on colour temp [K]) It is not visible when the lamp is new because the metals have not yet been vaporized and condensed onto the walls. This is why the pressure is so damn high (the metal boils!) And is why these bulbs take a bit to reach proper color and intensity, the metals must be boiled off the walls to pressurize the bulb volume, and the more pressure the more electrons hit gas atoms, therefore more light, with more electrical resistance more work is done on the gas (more heat)

For anyone who is curious, 200 bar is about 2900 PSI.

One thing you are missing here---this is a quartz arc tube with NO outer glass bulb like most MH lamps use, and because of this, it produces LOTS of short wave UV (ultraviolet) radiation, because of the mercury content of the arc---the mercury lines are always there, even after the halide salts vaporize and the lamp comes up to full color and output. This lamp is designed to be used in a glass-enclosed fixture to filter out the nasty UV radiation, which can cause really nasty sunburns in a very short time, and cause serious eye damage. Running this lamp open must have emitted a very strong odor of ozone---caused by the UV in the shorter wavelengths converting the oxygen in the air into O3---ozone. The odor of ozone is a dead giveaway that the lamp's bulb transmits dangerous shortwave UV, and means "shut it off before it burns your skin and eyes"! I would NEVER run this thing open. Also, because the operating pressure is quite high, and a failure would be dangerous, this lamp should never be used exposed! You can see the arc tube gets orange-hot during operation, and this stage is where arc tube failure is most likely. These lamps probably have a very short rated life, and are burning position restricted, although I do believe it IS horizontal, so it was burned in the correct position. The motor as a ballast is clever, works fine, but running this lamp outside it's proper operating current range, etc, on a makeshift ballast can increase the chances of violent failure a great deal. Lastly, as a light bulb collector, I really resent your throwing it and breaking it---I would LOVE to have that bulb in my collection! What a waste of a beautiful lamp! These things are nearly 2 thousand dollars new, and over 1000 dollars used but working, even blackened. A sad end to a gorgeous lamp. I'm not a huge GE fan, but would LOVE to have one of these lamps in my collection! Rick "C-6" Delair, Edison Tech Center, Sechenectady, NY. USA.

That's a lot of UV rays, nice way to disinfect the backyard. :P

Cinema projectionist here. You best not be standing near any reflections or direct light without a ruby glass filter. That UV is worse than welding.

Are all the houses for sale around you? :P

Neighbors probably thinks aliens have landed in your backyard.

"The neighbors shed is on fire again..""Don't worry its just photon and his experiments!"

Imagine Andy getting his hands on an MRI machine, he will create a freaking black hole. ROFL!

Make it into a head torch. So you can work on stuff at night.

You know what occurred to me when he was illuminating his shed at night? There is absolutely no reason why that beam directed towards the sky wouldn't be visible from space! My man, you should get a ham license (if you don't already have one) or get an accomplice who does, to make contact with the ISS as it passes overhead and get a combo audio/video recording of them confirming that they can see it! We'll be waiting!! :)

Glad u uploaded this one, those lamps are ridiculously bright and we have a few 12KW halide lamps with a ceramic coat on the arc tube to keep more heat in and an outer envelope to stop dissipation during heat up

Your mercury comment was classic!

Bet your neighbors love you!

I bet your neighbors freaking love you! LOL Keep up the cool work!

[running out of the room] 1.21 gigawatts! 1.21 gigawatts. Great Scott! Marty McFly: [following] What-what the hell is a gigawatt?

I suppose it would be nice to have your own personal collapsed sun.

11 years on, you're still the Photon-Meister!!

Great video, love the newly edited footage. Unbelievable that the glass can handle 200 bar pressure and not even pop while hot and under that high pressure. Great use of those motor interpoles.

You guys are going to be moaning "oh mercury in there" ugh. . Fuck it. . . XD 10:18

Previously unseen footage, I'm liking it!

did you get a light burn from that light? I used to work with a machine that used a 500w halide and everyday i got a red tan on parts of my face that werent covered. i learned quick not to stand next to it while it was running the exposures. lol

Great example of the dichroic effect in the unseen video. Love the voltage to current ratio the lamp was pulling when the variac was not happy.

mate you a legend! ha keep up the work. I learn loads from you!

Just read the linked document in the video description. The plasma in this metal halide arc lamp reaches a temperature of about 10000 degrees C. If you remember in your science books, 10000 degrees F is the temperature of the surface of the sun, but 10000 degrees C is 18032 degrees F. This is almost twice the temperature of the surface of the sun! When running, pressure rises to 200bar, which means 200 times atmospheric pressure! I'm surprised that these things are even able to run at all without blowing up. Sounds like a way to make a plasma grenade from the Halo games, if the bulb were to fail while running at full power.

Do your neighbors like you?

12 k is the biggest HMI that I've seen running, but 18 k have been available for a long time, and Mole Richardson now make a fresnel fixture which takes a 24k lamp. There's a video of it on KZfaq, but not running unfortunately.

Hey +Photonicinduction What about a 12KW Halide Lamp and a Fresnel Lens? Death Ray!!

I like these videos but I wish they had English subtitles.

that edit when you threw the bulb - great timing

Ow yeah 400k!!! Congrats maaan!!!

Any chance of that flash being detected by military satellites as a FLASH (nuclear explosion)?

You sir are a madman... I love it.

his neighbors must love him lol

Love your channel PI ....... do you ever see indication on your electric bill after certain experiments? What is that main control panel thingy you use ? Where did it come from?

Sir if I want to run 575 HMI lamp I m having two 250w ballast can I parallel it with one ignitor

Is that your back yard? Mowing must be easy

Yes hello I would like to know about this discharge source? Is this source hotter than halogen lamps??? How many Watts does that make? What can it do and how many volts can it do? Is there a mesh around the metal glass like the xenoarc bulbs? Is there mercury or not? In which light fixture can we use this source, is this source still in production???

I bet this is brighter than the 20kw halogen he has.

LMAO DEATHRAY. This is my favorite video yet. Well played!

If you burst that bulb wouldn't it be like detonating a shrapnel granade?

What causes that sharp pop when it starts up ? The arc striking across the electrodes inside ?

Might seem like a silly question, but at what voltage/current would that bulb take before the glass started to fail and crack/explode?

I think your brilliant,, keep em coming

favorite dude on youtube

Thank you for this video. But for a lamp to 12kW how much power you have right from your energy supplier?

Achievement Unlocked: Make the neighbors believe it's daylight in the middle of the night.

Two questions. Is the Reactor Live light just for show or do you actually have a Reactor? I wouldn't be surprised if you did XD. And, Where did you get that lamp?

Your neighbors must loooooooooooooooooove you😄

Are you goibg to try to find a light so powerful that it makes a room darker instead of lighting it up?

Why does the control panel of the variac have a lamp labeled "Reactor Live" on it? Just wondering.

Must be nice having the Sun in your back yard. How thick was your cables to carry that many amps?

What kind of applications would require a light that bright? Would it be used for some kind of industrial manufacture or something?

Wonder what your monthly electricity bill is. ;P

Ok where did you get it and how much does it cost?

Have you got one of the larger ones

Loving the vids! I dont mean to be intrusive or nosey but may i ask where you gained your broad knownledge of all things electrical? From watching your videos, I feel you know more about electronics than my college tutor, whom is currently teaching me electrical engineering.

That lamp and the mirror aimed up would no doubt have been seen from the ISS if pointed at them, im not even kidding.

Aside form the sun that's the brightest light I have ever seen!

Aside from just the luminous intensity, the ultraviolet radiation is also probably very high and potentially hazardous. This was a problem back in the 1880s and early arc lighting. Fused quartz doesn't block UV very much. The full fixture for it probably has UV filtering.

What sort of application was this from? Airport?

8:42 that cat drawing is beautiful.

Best explaination of how a tungsten halide light works I have seen. So as I understand it from this vid the iodine recombines with the dark tungsten sputter and reforms it to blobs which drop off the glass and clear the bulb? Must have read it in books 100 times and still didn't get it till now :D

what the heck do you plug it into? a 63amp breaker on the main board?

oh my god that was one of the coolest things i have ever seen

did you make that power panel ? I love it!

i just can't belive it's so powerful

Oh man. My heart stopped for a moment. I'm working with 1200W MHD lamps myself, and I never handle them without my XL visor. Keep in mind, these lamps are under an extreme pressure. I have seen the damage caused by a broken 575W-lamps. Believe me, you don't want the 12kw lamp to wreck next to your face, even not with a visor.

Dumb question here, but what is it about the way he is powering it that wears it out so quickly? I imagine when used in a proper fixture they last many times longer, but what is the difference?

how did you make that arcs at 4:20? you got some adjustable plasma generator ?

What is the casing made of? Crazy that it can handle 200 bar while glowing hot. Makes me wonder how they shaped it.

That's one hell of a grow light you have there! :D

What is a light like this used for?

@Photonicinduction can you please give me a link to this product as i cant find it anywhere

Is it possible to start it for a minute using some Li-Ion batteries?

how much do these light cost wow its cool.

Dos that balasting work with every motor ?

aliens are just guys like him making huge lights in their back yard

The same intense light comes outta my shorts when im excited.

if you focus the beam and shine it at the moon....

i have suggestion go make welder that carries it's power in backpack and welds metal whatever you go independent of power source for some time

DId the heat melt down your reflector?

The plasma state is fascinating.

Did you have to wire in a 63a supply?

Nice experiment

I guess it will provide permanent retine damege if looked directly?

You must be the most loved neighbour.

They say that one of the most infamous symptoms of mercury exposure is madness. Well, Mr. Photon, well... :) In all seriousness though, I do agree that the (recent) hype regarding mercury dangerousness is far exaggerated.

How did you get mini Jupiter in the backyard?

"REACTOR LIVE" does he have a fucking nuclear reactor in his house? I only ask because it wouldn't be the most surprising thing I've ever heard.

His neighbours stopped subscribing their electricity because when he walk the streets, he is emitting enough light for the whole neighbourhood

So, What kind of application is that bulb for?

hun where did you get such a nice tan?

Can you imagine if you could focus this into a coherent beam?

What would a lamp like that be used for?

I can't imagine an application that would need that much light except maybe a helicopter spot light. It might be pretty cool to put one of those on the space station. hehe

Err... is that "reactor live" just decoration?

Where's the part of smashing a lamp when it's on? would love to see that 200bar pressure pop!