Yup, it was indeed 72 watts! This ballast doesn't really have a good PF at all but I don't know why it jumps in power when a lamp is taken out.

Are you sure it's 72 watts and not 72 volt-amperes?  If it's truly 72W then the current would be around 2A at that power factor.  If it's 72VA that'd be more like 0.6A and 22W.

I do and I measured it: The F40 line current is 0.60a and the F34 line current is 0.58a. Based on the fact that the ballast doesn't get super hot compared to other ballasts (being ran at full power), it seems happy!

I can't really tell if it's HPF, or NPF. It lists on the label a PF of 0.88 probably at full power, but at about the 60% I keep it at, it has a pretty poor power factor of 0.62.

Also interestingly, when you take out one lamp, its power consumption jumps! At around 60%, it draws 42 watts, but when I take out one lamp it jumps to 72 watts and the PF drops to 0.30.

Nice

I checked the power ratings on my dimming ballast to see if F34s raise its power consumption at all.

Hm, it's possible I read the code wrong even though I'm pretty sure I didn't. Unfortunately all these lights are dust now.

I didn't know the ePact marking lasted so long though, and I didn't know they made F32T8 non-Altos so late.

August 2010 is the only possibility based on the lamp's features.  I don't know why the letter and number are flipped, but (Hg) and "700 Series" were both added in the mid-2000s.  Prior to that the lamps were branded "Hi-Vision" or "TL 70".  The 700 series lamps were discontinued due to regulations in 2014.

I'm more of a vinyl and cassette listener when I feel like listening to physical music. I do have a few CDs and a couple of CD players but I usually end up ripping my CDs to FLAC and then playing those instead. For portable use, I convert them to ALAC and have a older iPod with expanded storage to play them on.

When I built my current computer last year, I specially chose a case that looked modern, yet still retained a 5.25" drive bay. I installed a Blu-Ray drive in it, which I mostly use for ripping Blu-Ray movies and CDs. The library here still maintains a fairly up to date collection of them and the quality is much better than streaming.

Just bought two Philips F20T12 Cool White (non-Alto, grey end capped) lamps, as well as one Sylvania GTE Cool White F20T12 lamp, from Ebay... both for my upcoming light tables for my upstairs loft. The remaining Philips F20T12 will be used as a replacement lamp.

Attached is the images some Philips F32T8/TL-741s in one of my classes last year, while there was a lot of discussion on the age of the lamps, I wasn't completely sure about the age still. So here is what I know about the lamp:

1) It's date code is probably H0 (1980, 2000, 2020)
2) It is not an Alto
3) It has the ePact symbol
4) It has the Hg symbol
5) The building was retrofitted to F32T8 in the late 1990s (there were tons of 1998 Altos starting to go EOL)

There were several more of them in the same building too including one in the louver next to it with two burnt out 1998 Altos. Also the Polish F32T8 next to the lamp in question burned out after less than like 3 years!

 Soo, does anyone know when it was made? While H0 and it being a F32T8/TL-741 seems like an obvious 2000 lamp, I'm really confused on why it has an Hg symbol... On the second image, you can also see another symbol too out of frame on the first.

Yep... my beloved Hyundai Genesis Coupe, has officially been sold today. Although I will miss that very beautiful car, the speeds, and the wonderful
and odd turbo sounds it created during drives, the selling of my sportcar has opened up plenty of doors. I am now starting over from scratch.
My three main goals within the next three months: purchase a *daily* car, (which will happen within the next 2 or 3 weeks,) complete my apartment set
up, (I now have the money to purchase literally EVERY single bit of furniture that I want, including light tables, swivel chairs, etc) and purchase
another motorcycle. (I love the British supersport bikes, so my next bike will be another Daytona 675.)
In 2022, although my apartment at the time was not even close to being ready for anyone to enter it, I was in better shape in terms of vehicles, with
one daily car, one sportcar and one motorcycle. My goal is to get back to that at some point. I WILL be purchasing another turbo based sportcar, but
only when I'm ready to do so. It will be just as cool, if not cooler, than the Genesis that I just sold.
Anyways, just thought I'd let you guys know, since there are many fellow car enthusiasts out there who absolutely love that car. Even though I will
get an even cooler car in the future, I will definitely miss that car.