Specifications: Featured with thin, small size and high efficiency, this module is easy to install. It has compact aluminium shell with epoxy potting, which is waterproof, anti-dust, anti-shock and has better heat dissipation. It is suitable for car alarms, radio, intercom, electric motors, audio, navigation, surveillance, LED car display, air conditioning, and industrial electrical equipment, etc. Item Name: Step-down Module Material: ABS Input Voltage: 36V/48V (8V-60V) Output Voltage: 5V±0.25V Output Current: 10A, 15A, 20A Output Power: 50W, 75W, 100W Conversion Efficiency: 96% Protection Level: IP67 Working Temperature: -20 Degree Celsius - 80 Degree Celsius Product Models: 10A: JDL480510, 15A: JDL480515, 20A: JDL480520 Features: Convenient, Buck Module, Durable, Easy to Use Installation Line Length: 13cm/5.12" (Approx.) Size: 7.4cm x 7.4cm x 3.2cm/2.91" x 2.91" x 1.26" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Step-down Module