1、With high voltage and high current self-recovery fuse, the current is automatically disconnected when occur overcurrent, the fuse is automatically restored after a few seconds of power-off cooling, almost never need to change the fuse. 2、Using the latest low voltage drive technology. 3、Applicable voltage wide pressure 3-35V, small size, current up to 5A. 4、Stable performance, cost-effective, and also suitable for LED dimming. 5、Equipped with knob for convenient speed control. 6、Input voltage selection is divided into two gear positions. By default, the short contact point is applied to the voltage of 5-35V input. If the short contact point is connected, the low voltage 3-15V input is applicable. Item Type:Speed Controller Control power: 90W (maximum) Quiescent current: 0.015A (standby state) PWM duty cycle: 1%-100% PWM frequency: 10khz Model: ZS-X4A Shell Size:30 x 24 x 15mm / 1.18 x 0.94 x 0.59in(Without Knob) Net Weight: 0.015kg / 0.03 lb(approx.) 1 x Module