... With semileds led chips 3,IP68 4,3W, 6W, 9W, 18W, 27W, 36W etc 5,Constant current driver 2012 Wholsale High power 6x3W LED ... Navigation lamp Features: 1), Super-clase high power LED which is encapsulated ... or external constant current driver.5), Overtemperature automatic protection function. When environment temperature is more than 45 degree ...