Lap tops ?

Depends on the laptop, I bought an acer a few years ago and didn’t think it would be so power hungry, it was 180watts so could run on my 150w inverter properly. I have a pretty powerful HP now and it only draws about 60w, would even run off one of those small cigarette lighter inverters.

It’ll tell you on the laptop ac adaptor what the power consumption is, needs to be und your inverter’s constant (not peak) output to work properly.