This standard defines selection ranks for LED Luminaires@ and LEDs including OLEDs for the use in aircraft lighting. The size of these ranks is defined by the use of grades. This standard is valid for photopic light levels only.
PREN 4706-2015 history
2017PREN 4706-2017 Aerospace series LED colour and brightness ranking (Edition P 2)
2015PREN 4706-2015 Aerospace series LED colour and brightness ranking (Edition P 1)