I have three light sockets in my garage with just regular 60 or 75 watt
bulbs in them, all on one circuit. I want to install 8' long, high
output fluorescent strips in their place. Could I safely wire two
strips to one socket?

Also, these strips would be flushmounted to the drywall ceiling. I
thought I read somewhere that these ballasts could reach high temps of
190 degrees or so. Does anyone know if that is correct?

Thanks