If you want to use it in cold weather you’ll need Propane (Orange). Butane (blue) won’t work in winter. Campingaz is a mix of both.
Another option is a refillable bottle such as Gaslow, but pricey to begin with but you top up at the LPG pump at filling stations, so very cheap and you don’t need to run out/waste the remaining gas when you exchange the bottle. Also means you only need to carry one bottle.
I went for a 30l underslung tank. Need to budget for a proper filler mounted somewhere as filling stations get a bit tetchy if they see you filling at the cylinder as travellers use dangerous adaptors to (over)fill standard bottles.