Overcurrent protection and short circuit protection. High-grade coil. High power factor. Power: 18W,28W,48W,72 W,100W. Material: plastics. Electric current input: 0.62A. DC12V 2A 24W. DC12V 3A 36W DC12V 0.58A 7W DC12V 1.25A 15W DC12V 2.9A 35W DC12V 5A 60W Constant current 3W.