Power for Hot-end?

I use RAMPS 1.4 to control my printer. It haven't heated bed.
I use power 12V -10A at number 2.
Do i needs power for hot-end ? ( at number 3).If need, how i have to use power ? ( ? V ? A)
Thank you. I doing project to graduate.Help me.
[www.upanh.com]

from this link on ramps 1.4

[reprap.org]



Connecting Power
Connect your 12V power supply to the RAMPS shield. Reversing +/- or otherwise incorrectly connecting power can destroy your electronics and cause fire hazard.

The bottom pair of connectors marked 5A power the stepper drivers and Extruder heater/fan (D9, D10). The source should be rated a minimum of 5A.

The pair of connectors above marked 11A power a Heated Bed, or other output (D8). The source should be rated a minimum 11A (if both power rails are connected to the same supply it should have a minimum rating of 16A).

The barrel connector, on the Arduino MEGA, will NOT power RAMPS and will not provide power to the stepper motors, heated bed, etc.

The power connector plug may not be obviously labeled, looking at the power connection the positive is on the left and the negative is on the right of the plug.

and image from 1.4


Edited 1 time(s). Last edit at 05/09/2013 10:50PM by jamesdanielv.