50.4W AC/DC ENCLOSED SWITCHING POWER SUPPLY 12Volts @ 4.2Amps Specifications : +++Size (L x W x H) (inches): 3.9 x 3.8 x 1.4 +++Ripple and Noise (mV p-p): 120 +++Load Regulation: 0.5% +++Line Regulation: 0.5% +++Input: 88-264VAC @ 47-63Hz +++5G Vibration +++Able to withstand 300VAC surge input for 5 seconds +++Short-circuit/overload/overvoltage protection +++3-year warranty +++Certifications: UL/CUL/TUV/CE/CB