There are several small inverters that produce a sine wave output. I suggest you consider these over the square wave output or modified square wave output. At low wattage output, 100-150watts, the price will not be too much greater for sine wave inverters.
I have experience with a much higher wattage inverter (2000w) and have heard stories about difficulties with square wave inverter output. For example, digital clocks that won't keep time and digital microwave ovens whose timers will not function.
There are many sources for sine wave inverters. I have seen them at West Marine, a boating supply store. But, a $boating$ supply will not be the most economical place to buy. Although, they may have the best quality.
Good luck with the project
Russ
I have experience with a much higher wattage inverter (2000w) and have heard stories about difficulties with square wave inverter output. For example, digital clocks that won't keep time and digital microwave ovens whose timers will not function.
There are many sources for sine wave inverters. I have seen them at West Marine, a boating supply store. But, a $boating$ supply will not be the most economical place to buy. Although, they may have the best quality.
Good luck with the project
Russ
