> ## Documentation Index
> Fetch the complete documentation index at: https://stem-docs.intellectualpoint.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Power on

> Connect the power cord, check the voltage switch, and boot your printer for the first time.

## Turning on your printer

Time to bring your Ender 3 to life. You will plug in the power cord, double-check the voltage switch, and boot the printer for the first time.

<iframe src="https://iframe.mediadelivery.net/embed/697805/112be406-5c3b-4467-90bc-eec46f52d0e0?autoplay=false&preload=false" style={{ width: "100%", aspectRatio: "16/9", border: "none" }} allow="encrypted-media; picture-in-picture" allowFullScreen />

<Warning>
  Confirm one more time that the power supply's voltage switch reads **115** (in North America) before plugging in.
</Warning>

## Step-by-step

<Steps>
  <Step title="Connect the power cord">
    Remove the twist tie from the power cord. Line up the shape and plug it into the socket on the side of the power supply unit.
  </Step>

  <Step title="Plug into the wall">
    Plug the other end into a wall outlet. Peel the protective sticker off the LCD screen if you have not already.
  </Step>

  <Step title="Flip the switch on">
    Press the power switch on the side of the power supply. The LCD panel lights up and the printer boots.
  </Step>
</Steps>

<Check>
  The printer powers on, the LCD lights up and shows the Ender 3 home screen with X, Y, and Z coordinates. You have power!
</Check>

<Tip>
  If nothing lights up, check that the wall outlet works, the cord is fully seated, and the voltage switch is set correctly.
</Tip>

## Up next

Now the most important skill of all - **leveling the bed** and setting up the SD card.