Hmm, now you've got me thinking.
Since the TV is designed as a 12v model that can run off a cigarette adapter I assumed its internal power supply would allow it to run on a range of voltages (say 11 to 14 volts) the way a laptop's will.
The TV is sold for trucks, RVs and boats.
95 Catalina 30 Island Time
“Only two sailors, in my experience, never ran aground. One never left port and the other was an atrocious liar" - Don Bamford