For future reference of using tablets or phones to record videos, as long as circumstances don't prove otherwise, you can use the flashlight of the phone or tablet you're recording with as the light source for the shots. That of course isn't that valid in this video's case, but it's a great tool to take advantage of.

Do you have an email? I'll send you some pictures about this lamp. i have three. But two of the lights are missing shades😂

Hello,is this for sale? i have three Adams Bagnall lamps

21:29 now in the early 2000s in the 1990s are climbing such as mercury vapor, lights or high-pressure, sodium lights deluxe similar to lamps, like these are starting to appear everywhere in cities all over because arc lighting within cities are starting to become more common

Kiev was lit up like a festival with the first electric lights in 1878, what a sight it would have been.

St Petersburg had thousands of street lights with carbon arc lamps as early as 1870s! It was one of the first cities in the world with electric lighting, the Russians loved those things, all other big cities in Russia had electric lights after a while way before the filament bulb was even invented. Carbon arc lamps were actually invented in 1805, think about that, 1805 the first electric light was invented, but its weird because there ancient texts describing electric arcs that produce bright light a thousand years before 1805, thats wicked even if the texts are mere experiments but the fact that we today think people were stupid back then is an insult to humanity, first engines were already being built in workshops by 15th century, engineers experimenting with coal dust and gunpowder dust to make a piston in a cylinders move up and down, the piston in a cylinder itself is old as civilisation itself, even being used by Romans to pump water out of wells using steam!

That's got to be the coolest desk lamp i have ever seen

The video is all blackk.I would like to see it and learn. Thank you

i have not seen this light before thank you its very cool love how the starter works on it.

This is fantastic!

The finest example of the technology in operation on video anywhere. Jeff Behary has the only other (2) videos but they are a mere few seconds long with no commentary. To be sure, this lamp IS emitting vast quantities of ultraviolet light, but all of it is absorbed by the glass envelope except for the 365nm "I" line, which is relatively harmless. The smell test is adequate here because the lamp envelope for a device of this age is either going to be fused quartz, which will admit all wavelengths of UV down to the "vacuum UV", or it isn't and is made of glass which is sufficiently protective. The "ozone free" lamps which add a small measure of titanium oxide to the fused quartz to block the 185nm line that produces ozone while continuing to admit the 254nm line, are a relatively recent invention and definitely did not exist in this lamp's era. Subscribed.

I have never seen anything like this in my life! lovely fixture and hyper rare!

I have researched RF lamps and fixtures and the fixtures themselves were only made from late 1939 until 1942 because of the amount of copper the ballasts used and the increased rationing of precious materials during WWII and never made again however the replacement lamp, F85T10 lamp was available until the mid 1960s. This 450 watt mercury vapor "desk" lamp most certainly has more in common with the rectified fluorescent than a standard mercury vapor lamp which would likely date it no later than the early 40s. The only tubular mercury vapor lamp I've heard of is the H3000 A9 3000 watt industrial high bay, 132,000 lumens, in my 1954 GE lamp catalog.

They for sure are demonic! Another invention by Satan 😈

To test if the light is giving out any UVC light, you can get cards with a phosphor that glows under UVC light but not under UVA or UVB. They also have a photochromic pigment that darkens when exposed to UV.

The great thing about this lamp is that you just replace the carboon rods and lamp can keep operating for centuries Not like todays lamps (like Incondecent, MetalHalide, MercuryVapor, SOX, SON, and god no LED'), you cannot replace anything inside there Once they stop making them (SOX, MercuryVapor) or ban them (incondecent, CFL), because people like to ban stuff now, you are out of luck if you want to use them for whatever reason With carbon lamps, as long as you can get some carboon rods (which you will probably be able to do for centuries), and know how to fix things if they break, you will be able to use this carboon lamps for a long time

Amazing! I never thought one of these would make it to a collector.

Wow!!! I’ve been searching for YEARS for any info or pictures of these lamps in operation.

Fabulous rarity!! What a beautiful piece of industrial lighting tech. Cheers

Very interesting lamp. The first time I have seen such a Cooper Hewitt lamp. The UV wavelength responsible for ozone production is at 185 nm, while the DNA damaging wavelength at approximately 254 nm in the spectrum of mercury does not produce ozone. There may still be some 254 nm transmitted depending on the glass though, so it may be best to limit exposure to it anyway. Some more information about UV-C radiation I found here: yourlight.com/wp-content/uploads/2018/05/Effects-of-UV-light-Philips-Lighting.pdf

Welcome back, I'm so pleased you're posting again. Wow! What a lovely, rare lamp! Thanks for a well documented video and demonstration of the lamp in operation.

Fascinating to see one of these working. Glad you saved this one.

Thank you for the video. I've always wanted to see one in operation.

What happened to all your other street light videos

Was carbon arc color resemble a metal halide led fluorescent or mercury vapor lamp also it was soft warm cool natrual white or daylight in color temperture finally what type of ballast was used?

I don't doubt that electrical was not standardized back in the day that carbon arc lamps were used. Back then, that was during the civil war and shortly after. During the civil war, electricity didn't really have a use like it does today. In fact, during the civil war, electricity was a luxury item that only the super rich and powerful people would enjoy. Around the World War 1, electricity became standardized and 60 Hertz AC became the normal operations. Around World War 2, electricity became standard equipment in homes. But carbon arc lamps were used even after incandescent came around. You know how gymnasiums, roads, factories, and such have mercury vapor and metal halide lights? Well, the carbon arc lamp was the "metal halide" back in the civil war era, Titanic days, and those eras of time. And, the operation of carbon arc lamps is just like that of an MH or mercury vapor. Electric jumps the gap between two rods or electrodes and forms an arc and generates light. MH and mercury vapor work that way too. Only difference is that the arc in carbon arc lamps is in the air. MH and mercury vapor are in an arc tube in a glass bulb. But, your carbon arc lamp is an HID light source, high intensity discharge. However, I would just drop in a metal halide ballast into the Adams Bagnal lamp and convert it to metal halide. If it a DC lamp, you might have a better time powering it but even then, it is second to being impossible to do. And, parts are basically non existent at this point. And, troubleshooting will be a major pain. That is why I always like to throw in a metal halide ballast and bulb into those lamps so I don't have to worry about your warnings. And, metal halide ballast and bulb is child's play to find. Metal halide ballast and bulb are "give-me" basically, child's play to find. That easy to find. Learning how to walk is harder than finding a metal halide ballast and bulb. But carbon arc lamp parts? Impossible to find. Good luck with your lamp!

If I owned a carbon arc lamp like that in this video, I would just throw in a metal halide ballast and bulb.

9:30 All you need for that lamp to work is an inductor on 240 Volts.

Sources mention 133 Hz, this is the 1st time I hear about 166 and 233.

actually boor-silicate glass doesn't filter out UV (that's the type of glass that would be used for the inner tube because of the need for it to withstand high temperatures) regular glass does tho, the type that would be used for the outer globe, and don't look at the arc, there's a reason why welding masks are used when welding instead of just a pane of glass I doubt running this indoors would be a great idea since the light creates a lot of carbon monoxide, I doubt it's gonna be fully concealed by the inner tube that encloses it.

that is one awesome lamp. coincidentally I own a 400 watt metal halide Hang-A-Light, made by SouthWire which works on the same principle as an arc lamp. metal halide lamps, hitting the market in the early 1960s, are more or less an outgrowth of the mercury vapor lamp. which was used commercially since around 1930. One could argue the arc lamp was the most important light source ever invented as it would pave the way to mercury vapor, metal halide, high pressure sodium, low pressure sodium, fluorescent and neon all of which use an electric arc.

how do you get carbon rods for the lamps?

Amazing

HI! I don't have Facebook to access the arc lamp group.Would you be able to help me locate an inner globe?

I unfortunatly have no parts to trade.I am only missing the inner globe for my lamp.I would really love to find one.thanks shane.

How can I buy an inner globe?

I enjoyed the video, thank you for sharing.

Low Hz will heat it up .... Like All transformers where they too are sensitive and must have the right number and types of laminations

Curious how this was powered? Was there some sort of rheostat that came with it, or did you have to create something to power it?

Could you place something or someone under the light to show us what it looks like? Just showing us the light illuminating the top 10 feet of the pole isn't very helpful. Kudos to you for digging a hole and setting the pole.

How close to the naked eye perception of the light on the ground was the camera's recording?

That is fantastic and like you said this is a great way to see how it actually works and light quality.. if I may ask where do you get your carbon rods from ??? I know someone who has a old spot light in descent shape .... They are pretty good for lighting up the area that's for sure for the date and time...

How could someone not like this video? This is a testament to the quality of the piece of equipment that he has a restored back to working condition. Apparently after watching his other video he had to do very little other than clean it up and replace the globe. Heaven knows how many years this thing provided light for people when they really needed it. And the fact that it could still provide reliable light maybe a hundred twenty years after its manufactured to me is just outstanding. Bravo.

Thanks for the video.

Enjoying your work, thank you. Full of great advice, a great service, entertaining viewing, and I note that you sell parts too. I hope to see your passion featured in mainstream media some day.

As an electrician, I love seeing these very interesting lamps in functioning order! What a cool fixture! Keep up the good work, man...

Can you take your videos in widescreen? Can an iPhone record in widescreen? You have great content, but the vertical recording sucks!