Does anyone have good experience here with these ballasts? Also, I read somewhere on here that you could run this ballasts on 120V, is that true?

A while back i bought a brand new Philips made in poland 33/640 tube. It appears to have a 04-12-24 date print. I put it in storage for a bit.
I went looking for fluorescing color 27 lamps and what caught my eye - this tube!

I expected this to be a 'hidden' modern 930 tube. 930 tubes fluoresce a similar sort of green under 365nm UVA light. After all, i've found 840 tubes stamped as 640 before, so this one might very well be one of such.
But no! The spectrum looks very similar to any old halophosphate tube. The peaky green phosphor as used in a 930 tube is not there. With one difference: the 'emergency use only' tube has a bump at 517nm while other color 33/640 tubes have a bump at 490nm. It must be a different phosphor added to the mix. No other 33/640 tube that i own, fluoresces like this!

Does anyone have an explanation for this? How/why would they change a long running, fine working type of phosphor composition?
The light does not have a immediately visible green hue to it, at least no more ghostly than a color 33 already is usually.

I could imagine that they want to make this lamp especially effective in dimly lit, scotopic vision environments where the standard lighting is gone. Focusing the light energy in the green area would make sense. But this is very much speculation.

Like your creative use of DIS pin )

The question however is if DIS is a true open drain and pushing it above Vcc is really allowed. Datasheet is not clear on this, even more, a blanket statement of "Due to the SCR structure inherent in the CMOS process used to fabricate these devices, connecting any terminal to a volt-
age greater than V+ + 0.3V or less than V- - 0.3V may cause destructive latchup. " is present. TLC555 explicitly allows for this, btw.
ouble device of 556 may save a bit of board space.

Chapter 5.1 Absolute maximum ratings clearly shows no limitation to the DIS voltage vs VDD, it just limits it to 18V (and 0.3V below GND). That means the output transistor (or an extra GGNMOS parallel to it) is all what is protecting this pin against ESD, forward body diode for negative and intrinsic bipolar Bvces for positive voltages. No diode towards VDD.
The previous "any input" line really limits to the VDD, so that tells to me there are just diodes towards VDD and GND as SD protections.

 In fact you may always check this using a multimeter (if you have some clone IC where this is really not 100% clear how much identical the design is) - if you see a diode towards a supply, biasing that in forward (even less than 1mA) may trigger erratic behavior and when excessive (above the 50..100mA the normal CMOS are usually designed for), even a latchup.
And this is by far not limited to CMOS processes, it is common to any junction isnsulated monolithic process, whenever there is something looking like a diode biased in forward, you could be pretty damn sure it will be part of a parasitic bipolar. The only thing you do not know is where are all the collectors (there are more than one) and how much of the current flows there and how that part is sensitive.
But to activate the parasitic bipolar transistors (to e.g. trip the latchup), you need to forward bias their base-emitter (aka the diode your multimeter sees) first.
But if there is no such "diode" biased in forward, there won't be any parasitic collector currents...

MB Hydro went heavy on the ATB0 around 17 and most have gotten replaced and warranty replacements supplied and fitted the NON warranty they are using GE evolve series now and some ATBS/M for lease lights but NOT roadway lighting as of yet
none of the NEW ones have failed YET

not a bad looking design and for heatsink the top is the heatsink and that is why it is cut down compared to the gear compartment / slip fitter end

Yep, two way crossover optics over here haha.

Do you know whether they got them, I joined the group about a month ago.

That seems to be the way with most large manufacturers, usually asking you to go through a wholesaler, which can still have you order a single unit to your specifications, at least over here.

I got an OrangeTEK Ignis Mini to my own specifications (which they had in stock because it was exactly to a large utility's standards who installed thousands of them) strait from the manufacturer, they're still a large company, but not as large as some. I've also inquired about a 49w Ignis 1 from them, which they'd need to make specially for me, that comes in at the exact same price as a 72w unit which is currently in stock in Australia interestingly.

there are places that will make metal objects from CAD designs all mail order
the australian streetlight facebook group there was a guy trying to scan the popular models and wanted 3/4 scale home sized ones 3D printed using LED lamps for indoor lighting
there models don't use sophisticated optics systems like American SCO streetlights employ
and for classic cobras check out Alibaba in China there are some knockoff AEL 115 and M250 - I have a 115 "greenlight" induction and it is OK build quality and glass is NOT like a western one optics design

I was given a 115 built with a 250 watt ballast and sometime someone shoved a 400 watt gear in it and lamp to match the B2255 400 watt the rest of the yard had
the lamp was far to big and nearly touched the far side of the bowl and the choke was hitting the door when closed

I have run UK electronic ballasted fitting on US style split 240 just fine must be careful on the earthing as there is NO neutral and if the wiring calls for the neutral to body you have 120V body voltage and that is SPICY to the touch !!!!

@stillaintjeff24

Ah, were you ever able to order one from cooper or somebody? Or just everybody was already out of hid?

living in Canada you could NOT order a "utility" product personally and utility supply houses don't want to deal with customers at all and are largely UTILITY / CONTRACTOR only
that said I have seen many brand new in box lights on fleebay and local marketplace and for FAR LESS than the list price NEW that would be near as $1000 USD for a large cobra
some commercial electrical companies might have "retail" lights in the back room unsold and Granger has/had listings for some AEL products - quick search LED only now
https://ebay.us/m/t7es3s a 125 new in box on fleebay