... shut off the protection.4,With the soft starter, LED light gradually, in order to avoid attacking when you repeated switch ... current suddenly,which prolong the life of the LED light.5,Aluminum alloy sealied waterproof housing, waterproof, moistureproof, aviation connector ... ,PC**** Series power supply, mainly for the street lamp, project-light lamp and scenic spot lighting, etc.3,0-40°C ...