(Blog post begins) Introducing the 150 watt step down transformer! This product is perfect for those who need to convert 120 volts to 12 volts. This transformer is a replacement for the HD150-120, SET150UL. The package dimensions are 5.2 x 2.3 x 1.5 inches. This electronic halogen transformer has a 12 volt output and operates on a 120 volt input. It is also UL listed and has a maximum wattage of 150 watts. It is also energy efficient and has a low energy consumption. This product is perfect for those who need to convert 120 volts to 12 volts. Whether you are replacement an old transformer or just need to use a different voltage, this product is perfect for you. It is also UL listed, so you can be sure that it is safe to use.