Hello, I'm new here.
I want to know what are the buffer gases of the american energy savers F34T12 and the F32T8 linear fluorescent lamps.
1. I ask about the F32T8 buffer gas, because of the lamp unusual ability to start and operate on a rapidstart ballast, despite being a modern energy saver T8 fluorescent lamp, and the krypton-argon gasfilling of the european energy savers T8 fluorescent lamps (18W, 36W and 58W), which have a very high starting voltage, prevent the european T8 lamps from being started by rapidstart, SRS and quickstart ballasts, so the european T8 lamps are limited to operate only with a swtichstart/preheat magnetic ballast, or with an electronic ballast (Which isn't a rapidstart ballast).
So the F32T8, must have a different gasfilling than the european T8 lamps (18W, 36W and 58W T8) in order to have a low starting voltage, enough to start on a rapidstart ballast.
2. I ask about the F34T12 buffer gas, because these energy saver lamps are direct replacement for the existing F40T12 HPF rapidstart ballast. Yet their lower wattage being achieved by lowering the lamp voltage. Lower lamp voltage for the same length and diameter means different buffer gas, but it can't be krypton because the above reasons, of its very high starting voltage. However i know that the F34T12 lamps are coated internally with an electrically conductive coating. The F32T8 haven't that coating.
Expecting for an answer. Thanks.