A local church was planning a service and picnic on a nearby river for a special Sunday. There was no power there so I used this inverter with a 200ah deep cycle battery that I found at a nearby Rural King. This is a pure sine wave inverter that should be safe for electronic equipment. I used a small sound system and a laptop to play music for them. The inverter is rated for 2500 watts. I was pulling les than 100. I believe I could have played music the whole day without worry. The next time, we will consider more of a band with amps and such. This set up is like running a generator but without the noise. Also, unless the generator is rated as pure sine wave, there's a chance of power fluctuation and damage to sensitive electronic equipment. I like the extra power screen that shows the voltage and such. I can keep a constant eye on the power. There's a long cord for this so I can put it where I need it. I could also use this unit and battery on a job site for tools and such. I keep it in the back of my car, ready to go whenever I might need power "off the grid."