This 12vDC Switching Power Supply is more than capable of powering RepRap electronics, motors and a heated bed.
This power supply does not include any wires. You will need to purchase a heavy gauge grounded AC plug with cord.
CAUTION: These power supplies can be switched between 110VAC and 220VAC. If you are in North America make sure to set the switch on the side of the power supply to 110VAC. In most other regions of the world 220VAC should be used. You can find more information here.