ADJUSTABLE PWM 5A 5-35V LED DIMMER / DC MOTOR SPEED CONTROLLER 1. Working voltage : DC4.5V-35V 2. Output current: 0-5A 3. Output power: 90W (maximum) 4. Quiescent current: 7u A (standby state) 5.PWM duty cycle: 1%-100% 6.PWM frequency: 20khz 7. Size: length 30MMx width 26MM (without handle) x height 14MM 8. Weight: 0.013KG Precautions: ยท The DC motor governor input is DC, and it can't be directly connected to AC (for example: household 220V AC), otherwise it will burn out! ! !