The logic 19in that we use from currys definately runs on 12v . we run ours on 12v all the time even if we have electric hook up to free up the 240v to charge phone etc .Hope ths helps
That's it then. Thought it was a little strange yours bein gmore expensive. I took a punt at it being reliable after all he good reports so passed on the warranty but must admit it is a bargain for peace of mind.