Dual cold cathode inverters are quite commonly used for driving decorative tubes in PC cases, arcade games and cars. They split the current form a single secondary winding to two tubes using series capacitors.
If you just want to drive a single neon tube then you can rewire the inverter internally to give a single higher current output.
If you just want to drive a single neon tube then you can rewire the inverter internally to give a single higher current output.