In a previous garage-lighting-megathread, someone cited 130lm/SF.
Also, I'm pretty sure somewhere I saw someone had stuck one of the "Lightbar" style (thin flat flexible COB strip) LED headlamps to their welding helmet. Clever, low-profile, and didn't require drilling holes in the helmet.
I am not arguing against using Barrina/ strip lights in general. However as an alternative in a weird situation, I have a 1ft x 2ft LED "high bay" fixture (100W, claims to be 15k lumens, the exact one is NLA) hanging from the vaulted ceiling of the upstairs bedroom I use as an office/ hobby area. I could have made something to suspend a bunch of Barrina strips, but this was just 'easier' to replace a surface-mount incandescent b00b light. It looks like a DIY installation but I don't really care. It should be code adjacent if not 100% compliant, and the intent was there.
Anyway, it measures 9ft 9in from the floor to the underside of fixture. The room is 10.5 x 12ft, which works out to ~119lm/SF. The walls and ceiling are all flat off-white w/ knock-down texture. I got one of the free Lux Meter phone apps, zero idea if it is accurate. The app says it is generally 600-1100 lux at table height around the middle of the room, which converts to 55-100 ft-candles.
Therefore, with +/- 100% uncertainty, the lumen per square foot approximation has been shown to accurately predict the expected worksurface ft-candle measurement.
For a reality-check, I held 6 of the 4ft Barrinas together in the same location as the hanging fixture. Both seem about equally bright, both subjectively and with the Lux Meter app. The math is close (6x 2200lm = 13.2k lm).
I'm happy enough with this light fixture , although I don't think the split/pivoting design was really worth the extra few $ over a normal rigid one. I would not want any less general light, but I also don't think I'd want 2x as much, unless maybe for doing body work? I have enough light to work on most AR, RC, or 3D printer stuff down to about M3 hardware size. At the same time I also can still work at the computer with the overhead light on, for a short while. I would not want to do it for a really long time, and mostly I use a desk lamp instead.