Characteristic: 5V single power supply: Pin Set 4 kinds of pure sine wave output frequency: 50Hz pure sine wave fixed frequency 60Hz pure sine wave fixed frequency, 0-100Hz pure sine wave frequency is adjustable, 0-400Hz pure sine wave frequency is adjustable unipolar and bipolar modulation with dead time control. Pin set 4 dead time: 300nS dead time, 500nS dead time, 1.0uS dead time, 1.5uS dead time external 12MHz crystal oscillator PWM carrier frequency 23.4KHz the voltage, current, temperature feedback real-time processing overvoltage, undervoltage, overcurrent, overheating protection function Pin set soft mode 1S response time serial communication to set the output voltage, frequency and other parameters external serial 128 x 32 liquid crystal display module to display the inverter voltage, frequency, temperature and current information. application area: single phase pure sine wave inverter photovoltaic inverter wind power inverter uninterrupted power supply UPS system digital generator system if power supply single phase motor speed regulation controller single phase inverter sine wave light regulator sine wave voltage regulator sine wave generator Material: plastic colour: green Package Contents: 4 x sine wave inverter 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.