All true, and that's the traditional answer (as I recently wrote of caravans, my only, very old, experience of them is of totally non-electric ones - with even the lighting being 'chemical').Something which uses chemical energy to provide light. ... Propane/butane/MAPP/kerosene/gasoline - that sort of thing. ... The fuel will be hundreds of times more energy dense than a lead-acid battery, it will keep in storage, even in a part-used state, pretty much indefinitely with zero maintenance, if your supply runs out then a fresh one is widely available....Thinking about a light fitting for camp. ... Any ideas, guys??
The only thing one needs to remember, and take into consideration if/when deciding on this approach, is that creating light directly from any of those hydrocarbon fuels certainly produces carbon dioxide, and may produce carbon monoxide - with occasionally tragic consequences in tents (and caravans etc.).
Kind Regards, John