A 12V 29A DC power supply is a device that provides a stable and regulated direct current (DC) output of 12 volts with a maximum current capacity of 29 amperes. https://youtu.be/k4mA_N4mOso Features: 348W 12V 29A Single Output Switchable Power Supply 12 Volts 29 Amps Features AC input range selectable by a switch Withstand 300 VAC surge input for 5 seconds No load power consumption 1U low profile High operating temperature, up to 70°C Protections: Short circuit / Overload / Over voltage / Over temperature Built-in cooling fan, ON-OFF control Compliance to UL 60950-1 Withstand 5G vibration test High efficiency, long life and high reliability LED indicator for power on 100% full load burn-in test Specification: AC input voltage range: ?85-264VAC 47-63Hz Input current: 115V /2A, 230V/1A  Output: 12V/ 0-30A AC inrush current: Cold-start current 20A/115A 40A/230V  Leakage current: <1MA/240VAC  Dc adjustable range: +/_10% rated output voltage Overload protection: 105%-150% hiccup mode, auto-recovery Over-voltage protection: 115%-135% cut off the output, auto-recovery  Setup, rise, hold up time: 200ms, 50ms, 20ms.  Load regulation: +/_ 1% Working temperature: -10?~+60?, 20%~90RH  Weight/package/size: 0.65kg, 199x 109x 50mm  1490 Package Includes: 1 x 12V 29A DC Power Supply