Inverter

Need advice on what to buy to power a TV in cab

What type of Inverter would be best.

I use 24 volt 300 watt, runs sky box & tv.

Why not just buy a 12/24v telly? Given I bought one in the mid 1990’s early in my career they’re not a new concept. Pretty much all the major truckstops with a shop have them and you can pick them up on Ebay new for under £120.