Resistive load: Refers to a pure resistive load like ordinary incandescent lamps, induction cookers, fans, computers, and microwave ovens. A 2000W induction cooker can typically be driven by a 2000W inverter.

Inductive load: High-power products using electromagnetic induction (motors, compressors, relays). These require 3-7 times the starting current. Examples: refrigerators, washing machines, air conditioners, water pumps, and electric tools.

Capacitive load: Loads with capacitance parameters where voltage lags current. Examples: switching power supplies, energy-saving lamps, and electric vehicle charging units.

1. Waveform Quality: Sine wave inverters generate pure AC consistent with the grid, with low harmonic content. Modified wave inverters are between square and sine, containing more harmonics.

2. Efficiency & Cost: Modified wave inverters are cost-effective but may generate heat. Sine wave inverters are more complex and expensive due to high-quality control circuits.

3. Application Scope: Sine wave is essential for precision equipment and sensitive medical devices. Modified wave is suitable for general household lighting and cost-sensitive applications.

4. Impact on Equipment: Sine wave provides high-quality power for sensitive laboratory equipment. Modified wave may cause high-frequency interference to communication or precision equipment.