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: <120VInput current: <1AOutput voltage: <20KVOutput current: <20mARated power consumption: <15WRated frequency: 20KHz~400KHzShort time limit operating parameters:Input voltage: <150VInput current: <8AOutput voltage: <20KVOutput current: <60mAPower consumption: <15WFrequency: 10~800KHzDriver board parameters:Model: Second generation single-tube flyback driver boardInput voltage: DC (DC) 5V~15VInput current: <5APower: <70WFrequency: <26kHzPlease 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:1Pc (as your choice)