Features [High Efficiency] Our DC to DC step up transformer can ensure up to 96% conversion efficiency, which is very practical. [Die Cast Aluminum Shell] Die cast aluminum shell provides good protection for interior board, can also be used as a heat sink. [Full Sealed] The shell is full sealed with epoxy resin, the DC boost module is IP67 waterproof, dustproof, shockproof, more stable to use. [Safety Use] The module has built in over voltage, under voltage, overload, over heating and short circuit protections, safe and reliable. [Widely Used] Suitable for vehicle, safety system, hospital equipment, telecommunication, electrical equipment, led light bar, motor, security equipment, etc. Specification:Item Type: DC to DC Boost Module Shell Material: Die Cast Aluminum Potting Material: Epoxy Resin Input Voltage: 12V (9-18V) Output Voltage: 20V Output Voltage: 5A Output Power: 100W Working Temperature: -20 to 80 Conversion Efficiency: 96% Waterproof Grade: IP67 Package List:1 x DC to DC Boost Module Package List 1 x DC to DC Boost Module