Strobe Lights
Controls the operation of the white strobe lights located on each wing tip and below the APU tail cone.

• OFF - Turns lights OFF
• AUTO - Causes strobe lights to come on automatically when the nose gear shock absorber is not compressed.
• ON - Turns lights ON

Beacon Lights
Controls the operation of the red Beacon lights located on the top and bottom of the fuselage.

Wing Lights
Controls the operation of the wing illumination lights located on each side of the forward fuselage. The lights illuminate the wing leading edge and engine air intake.

NAV & LOGO Lights
Controls the operation of the navigation lights. Dual navigation lights are located on each wingtip and on the APU tail cone.

• OFF - Turns lights OFF
• 1 - Turns first set of navigation lights ON
• 2 - Turns second set of navigation lights ON

RWY Turn OFF Lights
Controls the operation of the Runway turnoff lights located on the nose gear strut.

Land L / R
Controls the operation of the Left and Right Landing lights located inboard of the engines..

• RETRACT - Causes the respective light to retract and turn off.
• OFF - Causes the respective light to go off. (but remain extended)
• ON - Causes the respective light to extend. The light comes on automatically when fully extended.

Nose
Controls the operation of the taxi and takeoff lights located on the nose gear strut.

• OFF - Turns the taxi and takeoff lights OFF.
• TAXI - Turns the taxi lights ON.
• T.O. - Turns the taxi and takeoff lights ON.

Master Switch
When selected ON:

• ON illuminates blue
• ECB power-up test is initiated
• APU air inlet flap opens
• APU fuel isolation valve opens
• APU fuel pump runs
• ECAMAPU page is displayed

When selected OFF:

• ON light extinguishes
• APU START switch AVAIL light extinguishes
• APU shuts down after two minutes for cooling
• APU air inlet flap closes

START Switch
When selected ON:

• ON illuminates blue
• The APU starter is energized after air inlet flap is fully open
• Ignition occurs
• At a preset N, the starter is de-energized and ignition ceases

At 95% N:

• ON light extinguishes
• AVAIL light illuminates green
• The APU is available to supply Bleed Air and/or Electrical power
• After 10 seconds the ECAM APU page disappears.

OVHD INTEG LT
Controls the intensity of the overhead integral lighting.

Ice IND & STBY Compass
Controls the operation of the ice indicator and standby compass integral lighting.

Dome Light

• OFF - Turns Dome light OFF
• DIM - Reduces Dome lighting intensity
• BRT - Selects both Dome lights on high intensity

ANN Light

• TEST - Causes all flight deck annunciator lights to illuminate. All liquid crystal displays (LCDs) indicate "8"s.
• DIM - Reduces the illumination of Annunciator lights
• BRT - Increases the illumination of the Annunciator lights for normal operation.

Seat Belts Lights

• OFF - Turns signs off and associated chime sounds.
• ON - Causes FASTEN SEAT BELT signs (in cabin) and RETURN TO YOUR SEAT sign (in lavatories) to illuminate. Associated chime sounds.

No Smoking Lights

• OFF - Turns NO SMOKING and EXIT signs off and associated chime sounds.
• AUTO - Causes NO SMOKING and EXIT to come on when the landing gear is extended and to go off when the gear is retracted.. Associated chime sounds when the signs come on and go off.
  UPDATE - Currently the NO SMOKING sign is always illuminated and needs to remain in Auto to allow for Emergency exit battery charging.
• ON - Causes NO SMOKING signs to illuminate and associated chime sounds. The EXIT signs may or may not illuminate, depending on which Cabin Attendant Module (CAM) is installed.

EMER EXIT LT

• ON - Causes overhead emergency lights, EXIT signs and escape path lighting system to illuminate.
• ARM - Causes overhead emergency lights to automatically illuminate if AC bus 1 or DC ESS SHED bus fails, or if the emergency generator is operating due to normal aircraft electrical power failure.
  
  Escape path lighting and EXIT signs automatically illuminate if DC ESS SHED bus fails or normal aircraft electrical power fails without the emergency generator operating.
  
  EXIT sign also automatically illuminate when cabin altitude exceeds 11,300 feet and may illuminate when the NO SMOKING switch is selected ON, independent of EMER EXIT LT selector.