Emergency exit lights must be a part of your fire protection services as it helps in the safe evacuation of occupants from a building in an emergency. Generally, the colour of the exit lights used in Australia is green, but it’s classified into three types based on the level of illuminance. Internally illuminated exit light Low illuminance area exit light Extremely illuminated exit light The green section of an exit light must be square or rectangular shaped; however, the colour of the background must be identical to the background within the pictorial element. The pictorial elements displayed on the exit sign should convey messages like straight from here, right from here, or left from here.