Model：HM-03D/knob dimmer
LED：1.7W
Input：AC 100-240V 50-60Hz
Output：DC 9V
Connected point：The switch of sewing machine motor / power plug
Suitable for：All types of sewing machines and other illumination
CHARACTERISTICS:
1.Save energy and long-lived.
2.Smooth and clear light.
3.Any side adjustable can keep nice vision for your choice.