Features: 4-pin pure sine wave output Frequency: 50Hz fixed frequency pure sine wave, 60Hz fixed frequency pure sine wave, 0-100Hz adjustable pure sine wave frequency, 0-400Hz adjustable pure sine wave frequency, Unipolar and bipolar modulation Comes with dead time control, pin 4 dead time: 300nS dead time, 500nS dead time, 1.0uS dead time, 1.5uS dead time, External 12MHz crystal oscillator PWM frequency 23.4KHz, current, real-time temperature feedback, Overvoltage, undervoltage, overcurrent and overheating protection Soft mode pin setting response time 1S, Serial communication to set the output, frequency and other parameters, External serial LCD module 1602 displays the inverter, frequency, temperature and current information Applications: Single-phase pure sine wave inverter PV inverter Wind power inverter Uninterruptible power supply UPS system Digital generator system IF power Single-phase motor speed controller Single-phase inverter Sine wave dimmer Sine wave regulator Sine wave generator Material: plastic Color: blue Package Contents: 1 x inverter driver board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.