Of course inverter AC is more efficient than fixed speed compressor units.
Once the room is cooled to the desired temperature the compressor just runs slowly to maintain the temperature instead of running at full speed on and off every few minutes.
This really is pretty basic stuff and should be obvious.
Think of driving a car: you don't keep flooring the accelerator and then suddenly let right off only to repeat this sequence a few seconds later to maintain roughly the same speed. If you imagine the poor fuel comsumption this would give then this corresponds to the similar reduced efficiency of fixed speed AC units in most situations.

Hello, I am back again with questions about a capacitor that I just purchased. it is a 30 uF capacitor. Should I reuse the original resistor that came off the old capacitor or is it not necessary. Also, should I paint the capacitor or is that gonna destroy it?

Thanks for reading!

At the HVAC Hub discord server, I asked this question, and they saying that this is true, but I don't understand how.
I only know that in on/off A/C the compressors always works at 100% speed and turned on/off, and in inverter A/C, the compressor changes its speed.

@WorldwideHIDCollectorUSA
Very interesting, I have never heard of those!

Do these lamps use a 700-series phosphor?
https://www.amazon.com/Philips-281618-Fluorescent-Lumens-Phosphors/dp/B008VJCVFO
Recent datasheets claim the use of a 800-series phosphor but older datasheets do show the use of a 700-series phosphor. Being USA made, they might be old enough to still have the 700-series phosphor, although I am unsure.

@Multisubject, After reading some Advance Catalogs, I have seen that they did list some 480V 60hz only series reactor ballasts for 35W, 55W, and 90W SOX low pressure sodium lamps.

For the 35W and 55W lamps, the 480V 60Hz reactor ballast designed for them is part number 71A0440. For the 480V 60Hz reactor ballast for 90W SOX low pressure sodium lamps, the ballast part number is 71A0540.

From those particular ballasts, I am sure that the 480V line voltage alone was just enough to ignite the lamps.

That was my idea, too. Wander what lifetime penalty is on each start...

True.

At the end of the day, it’s your light. If you were able to find someone who is willing to repaint it for you, that’s excellent.

Well, the people who are going to refinish and paint this said that they were intrigued by it so I figured I'd hand it off to them and they can fix it better than I can especially considering that I don't have the right equipment to do so.