【Widely Applications】It is suitable for the speed regulation of DC motor, fan, fish tank oxygen pump and other products in DC1.8V--12V. This controller can continuous change device working current and completely cut off. 【Motor Speed Controller】Ultra-low voltage dc motor governor with the chip model: NE555; Potentiometer with switch function; Use a 2A resettable fuse to protect the controller; Power-on indicator. 【High Performance】Input supply voltage DC 1.8V-12V. Maximum continuous output current 2A. Maximum output power 30W. Duty cycle adjustable 0%-100%. 【Secure Enough】The speed controller is equipped with a self-recovery fuse. When the current is too large, the fuse is automatically disconnected. After cooling, the fuse is automatically restored. 【Pay Attention】①Please connect this DC controller to DC power supply. Never connect directly to household 220V AC power supply, or it will be damaged; ②Don't power supply larger than 15V. ③This is a 2A high current governor, which can't drive larger than 0.5A continuous current / the 775 motor / children's car motor. Please confirm again before purchasing. Package Included:
6 × PWM Low Voltage DC Motor Speed Controller
6 × Speed Control Knob

Specifications:
Chip model: NE555
Input supply voltage: 1.8V-12VDC
The max output power: 30W
The max continuous output current: 2A
Duty Cycle adjustable: 0%-100%
Size: approx. 32x32x14mm

Cautions:
①Please connect this DC controller to DC power supply. Never connect directly to household 220V AC power supply, or it will be damaged;
②Don't power supply larger than 15V, or it will be damaged;
③This is a 2A high current governor, which can't drive larger than 0.5A continuous current / the 775 motor / children's car motor. Please confirm again before purchasing.