Power: 3W / 5W / 7W/ 9W / 12W / 18W / 24W / 36W. Constant current 7W Constant current 9W Constant current 12W Constant current 18W Constant current 24W Constant current 36W Constant current 5W. DC12V 1.5A 18W DC12V 2.33A 28W DC12V 4A 48W DC12V 6A 72W DC12V 8.33A 100W DC12V 1A 12W DC12V 2A 24W.