Panel With Labels

• 1). Open the circuit breaker panel's box.
  
  
• 2). Look at the label beside each breaker switch or diagram affixed to the panel. Find the switch that controls the circuit of the light fixture that you desire to turn on or off.
  
  
• 3). Flip the proper switch to the opposite position to turn the light on or off.
  
  

Panel Without Labels

• 1). Turn the light to the "On" position using the fixture's wall switch or built-in switch.
  
  
• 2). Open the circuit breaker panel's box. Flip the first breaker switch to the "Off" position.
  
  
• 3). Return to the light fixture. If the light is off, the first breaker controls the light. If the light remains on, return to the breaker panel box.
  
  
• 4). Return the first breaker to the "On" position. Use the same testing process to assess each breaker on the panel. Continue to test individual breaker switches until you locate the switch that controls the desired light fixture.
  
  
• 5). Mark the correct breaker by attaching a labeled sticker next to the switch. Flip the labeled switch to control the light fixture.