@Lcubed3 and
@Multisubject - I am referring to the 700 and 800 series lamps that were banned in 2012 for being “too inefficient.” F40T12s are still under manufacture, but the only ones available now are high-CRI ones (either halophosphate deluxe colors or another weird type that I think might be a form of multiphosphor) that are super dim. But that’s what the ban exempted, instead of the nice bright triphosphor 700 and 800 series lamps, we were left with the least efficient, dimmest lamps.
Triphosphor is not the only type of lamp that you can buy today, not by a long shot. In fact, most “old school” lamp sizes (excluding F40T12 and F96T12 of course) are still regular halophosphate to this day, particularly cool white and daylight versions. Warm white versions became triphosphor a few decades ago to achieve better color rendering, but you can still find halophosphate versions from smaller brands.
