Inverters convert the Direct Current (DC) from the generating source or batteries to Alternating Current (AC) for use in the majority of household appliances. The main difference between inverters is the quality of the output wave, generally either a Modified Sine Wave or Pure Sine Wave. Modified sine wave inverters are the most economical inverters, however because of their distorted waveform, some electronics have trouble running off of. Pure sine inverters have the ability to operate almost any electronic device at a slightly higher cost. Pure sine wave inverters also are designed to run either off-grid, on-grid, or have dual capabilities.