Inverter circuit boards are electricity electronic devices which converter Direct cutting-edge (DC) to Alternative modern-day (AC). This board converts 12V DC current to 220V AC modern-day. It works on the frequency of 50Mhz to 60Mhz. But You will need to attach a 12-zero-12 12V transformer with it, to get the right energy deliver. This board has in-built over-voltage, over current, and brief circuit protection. The board is perfectly designed to offer high output overall performance. Input voltage : 12V DC Output voltage : 220V AC Power rating : 200Watt Frequency : 50HZ/60HZ