Features: 4 pin pure sine wave output frequency: 50Hz pure sine wave of fixed frequency of 60Hz pure sine wave of fixed frequency 0-100Hz pure sine wave frequency adjustable 0-400Hz pure sine wave frequency adjustable Unipolar and bipolar modulationComes with deadband control, pin 4 dead time: 300nS dead time 500nS dead time 1.0uS dead time 1.5uS dead time, External 12MHz crystal oscillatorPWM carrier frequency 23.4KHz. Voltage, current, real time temperature feedback, Overvoltage, undervoltage, overcurrent and overheating protectionSoft- mode pin setting the response time of 1S Serial communication to set the output voltage, frequency and other parameters ,External Serial LCD Module 1602 displays the inverter, voltage, frequency, temperature and current informationApplications:Single phase pure sine wave inverterPV InverterWind power inverterUninterruptible Power Supply UPS SystemDigital generator systemIF powerSingle-phase motor speed controllerSingle-phase inverterSine wave dimmerSine wave regulatorSine wave generator Material: plasticcolour: bluePackage Contents:1 x Inverter Driver BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.