Least power draining and space saving photography lighting?

I'm currently setting up my self-build van and need good quality lighting as I work as a webcam model.

Now usually if you were in a house you'd just get two softboxes and have them in front of you either side. These take up power and space, however the power concerns me a lot more than the space does.

I need to find photography lighting or something just as good which doesnt draw much power for van life and ideally doesn't take up too much space, does anyone have any suggestions?