Do CFL type light bulbs or in other words "the curly type" light bulbs work well with a non pure sign wave inverter? This spring I installed a small off-grid solar system in our cabin on the cheap and I'm using a "Harbor Freight" 1500 watt square wave inverter. This week a 5 year warrented CFL light bulb went out with maybe only 30 or so hours on it. Maybe it was just a fluke? The other CFL's are still working. Any thoughts? Here's the inverter.