1.Intelligent frequency conversion adjustment: supports 40Hz-150Hz wide-band speed regulation, automatically optimizes operating efficiency according to refrigeration needs, and saves energy and electricity.2.Stable power supply: adopts high-specification circuit design to voltage stability, reduce compressor shock, and extend service life.3.Ultra-quiet operation: optimize algorithm, reduce the start-stop noise of the compressor, and make the refrigerator run quieter.4.Widely compatible: adapt to a variety of for /for frequency conversion refrigerators, replace the driver board, and easy to repair.5. and reliable: industrial-grade PCB board, moisture-proof and dust-proof, strong anti-interference, long-term stable operation.Input voltage: 220-240V / 50-60HzCurrent: 2.1AOutput voltage: 230VFrequency range: 40Hz-150HzCurrent: 2.1AModel: 0193525188Compatible compressor: for Embraco QD (VCC3 2456)Note: Please check the refrigerator model and compressor parameters before installation to compatibility.Note:Installation guide not included, we strongly recommend you professional installation.Please check as much as possible to make sure the item is what you need.Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect UseColor: BlackMaterial: plasticPackage Contents:1 x Inverter Board 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.