Do UPS inverters use Modified or Full sine wave?
I've been running my laptop, Desktop computer monitor, and a whole bunch of other things off a cheap 100w modified sine wave inverter for few years now, but have just recently started wondering if I got an old UPS that ran off of 12V for the inverter if it would be cheaper than buying a real full sine wave inverter. But I'm not sure if the inverter is Full sine wave for use with computers. I have a small off grid system I'm using.
Anyone know for sure?