All epoxy sealed containers with Waterproof Housing.With overload/over-current/overheat/low voltage protection, stable performance.Short circuit protection: sustainable, -recovery.Input Reverse Polarity Protection: No, if necessary, enter the series diode.Module Properties: non-isolated .Light compact, convenient to and transport.Rectification: synchronous rectification.Operating Temperature: Industrial (-40 Celsius to +85 Celsius) (ambient temperature exceeds 40 degrees, lower , or to enhance heat dissipation).Input voltage: 12VOutput voltage: 5VDual USB output Output current(MAX): 3A,.Rated : 15WConversion efficiency: up to 96%Soft- time: 500mSOutput ripple: 50mV (MAX) 20M-bandwidthDynamic response speed: 5% 200uSUsb cable length:30cm(from regulator to usb connector)Size: 46x27x14mmMaterial: ABS plastic housingPackaging include:1 x DC12v to 5v 15W dual ConverterNote: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.