My first questions, how much power do they need typically use while watching an HDR film, and for SDR? Can they be dimmed, I'm optimistic being diodes yes. Laser diodes should be more efficient than MH lamps as long as they arent being overdriven, which would impact life also. Price matters of course, early versions are going to be beyond most peoples grasp, but in in 10 years this could be a fair solution.