1512DJ-SLB is an innovative, versatile and user friendly electronic ballast system from Marathon. It is specifically designed for street lights, directory signs and canopy lighting. This ballast system offers a wide range of voltage and wattage combinations, allowing it to be used in almost any indoor or outdoor lighting application. This system also comes with a temperature compensation feature and will adjust the voltage and wattage to optimize light output and reduce power consumption. The 1512DJ-SLB ballast system is extremely reliable and durable, with a life expectancy of up to 80,000 hours. It is available in both 120V and 277V versions, and is compatible with many popular lamps. This unit is Energy Star rated and is UL listed (CUL).