I was thinking about making an HPMV arc tube thinner than the snandard sizes and replacing the argon buffer gas with krypton like it was done with 18, 36 and 58 W fluorescent lamps.
Would it be possible to make for example a 72 W high pressure mercury vapor lamp to replace 80 W ones like 36 W fluorescent tubes replaced 40 W ones?
The only reason I could think of why this wouldn't work is because the starting voltage would be higher so the lamps would need to be pulse start instead of probe start.
Or would krypton have no advantage over argon in high pressure discharges as opposed to low pressure discharges?