Hi We have the JML one and use it all the time on the boat. It cooks realy great Sal makes cakes , Roasts, stews and anything else you do in an ordanry oven. You can use normal oven trays or glass dishes as its not a microwave .
Hope this helps
Right I will try to explain. The oven runs on 50hertz at 220-240 volts ac which equates to 6 amps.
If you want to run it on a 12 volt system you will need an inverter that can run at a conatant
1500watts this could cause a problem with the batteries if you dont have enough charging power going in. We run ours on the generator a honda 2kw with no probs. Hope this helps.