ITEM NAME:DC 12V / 24V / 36V / 48V to DC 5V 2A 10W Car Electricity Supply Module Volt A9M1 DC 12V / 24V / 36V / 48V to DC 5V 2A 10W Car Electricity Supply Module Volt A9M1 Convert unstable voltage DC 12V / 24V / 36V / 48V (8V-58V) to stable DC 5V 2A 10W output. Si-Fe cores magnetic loop, high temperature resistance and super stability Importing high heat transfer organic silica gel filling and sealing technology. IP67 protection class, waterproof, moisture proof and shockproof protection Built-in over / under voltage input, overload, overheating and short circuit protection. Materials: Plastic Color: Black Dimensions: 46 x 32 x 18mm Package Contents: 1 x Module Voltage Converter Controller Waterproof Electronics Transformer