SHO-ME 24V DC - 12V DC Converters. 
Converts 24 volts DC to 12 volts DC.
Three models: 5 amp max - 60 watt, 10 amp max - 120 watt, 20 amp max - 240 watt
Greater than 90% power conversion efficiency
80% duty cycle at full load
Stable and reliable performance
Built-in over / under voltage input and overload protection
Includes blade-type inline fuse
Compact size - lighweight
Simple to install
Die-cast aluminum housing - epoxy sealed
Made in USA
Dimensions: 
20 amp model: 1-1/8"H x 2-7/8"W x 2-7/8"L / 8.4 oz.