1. Working Voltage: DC8~25V 2. Rated Current: 0.5A (max 0.6A) 3. Working Temperature: -45～65℃ 4. Working Humidity: max 85％ 5. Size: OD44.8*3.27mm(ID7.6mm) 6. Protection: low voltage, over current, over temperature, bolck 7. Hall sensro control 8. Application: automatic hair curler