Simple 5V power supply. Pin configuration allows for four types of 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, 4 dead-time pin configurations: 300nS dead time; 500nS dead time; 1.0uS dead time; 1.5uS dead time. External 12MHz crystal oscillator. 23.4KHz PWM carrier frequency. Real-time voltage, current, temperature feedback. Overvoltage, undervoltage, overcurrent, and overtemperature protection. Soft-start mode pin setting 1S response time. Serial communication to set output voltage, frequency, and other external parameters. External serial port 128 x 32 1602 LCD module displays inverter voltage, frequency, temperature, and current, and other information. Material: plastic + metal Color: as shown Package Contents: 1 display Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.