... , 6W, 9W, 18W, 27W, 36W etc 5,Constant current driver 2012 Wholsale High power 6x3W LED Navigation lamp Features: 1), Super-clase ... , makes the light to use in sea water freely. 3), High luminous efficiency, life-span reachs 50,000 hours.4), Built ... celsius or the voltage is above 30V, the output current of built-in constant current driver will be shutdown in order ...