DC1248V For PWM Fan Controller with Temperature Probe for For industrial Fans

For PWM range: 5-100 or 0 (% plus or minus 0.3%). For PWM frequency: 20KHz or 2.5KHz (±2%). For PWM signal amplitude: 10.5V (no load). The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.

eBay