The Malibu 120 Watt Power Pack 8100-9120 Weather Shield is a corded electric transformer designed for outdoor lighting applications. This black plastic power pack has a sleek matte finish and is specifically designed to power Malibu brand outdoor lighting systems. With a power consumption of 120 watts and a voltage of 12V, this unit features a sensor for added functionality. The compact size of 4.7INX3.4INX7.5IN makes it easy to wall mount for outdoor use in gardens and yard areas. ETL listed for safety and quality assurance, this power pack is a reliable choice for illuminating your outdoor space. Free 30 day returns