... 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 ... .4), Built-in or external constant current driver.5), Overtemperature automatic protection function. When environment ... built-in constant current driver will be shutdown in order to protect the LED without damage, and ...