100% Brand NewTurns ratio: 100 (the turns ratio is not equal to the boost ratio, usually using a flyback structure to achieve a higher boost ratio)Continuous operating parameters:Input voltage: Input current: Output voltage: Output current: Rated power consumption: Rated frequency: 20KHz~400KHzShort time limit operating parameters:Input voltage: Input current: Output voltage: Output current: Power consumption: Frequency: 10~800KHz Driver board parameters:Model: Second generation single-tube flyback driver boardInput voltage: DC (DC) 5V~15VInput current: Power: Frequency: Please note before use: Single-pole flyback topology transformer high-voltage output must pull arc or load, no-load is prohibited Single-tube type drive board should not work for a long time, if you need to add a fan for a long time or replace a larger radiator Package Included:1 x (as your choice)