ITEM NAME:1 Piece PCB Components DC 12V~40V 10A PWM Motor Speed Control Switch Governor 1 Piece PCB Components DC 12V~40V 10A PWM Motor Speed Control Switch Governor a.imagelink a:hover.imagelink {color:#000000;.PWM frequency: 13KHz. The maximum current: 10A. Duty Cycle adjustable: 10% ~ 100%. Color: Green. pealse be aware of this before placing your order.