All our IES files are based on typical performance in the southern US with 4000K LEDs. Nightscape and Amber have separate IES files but can be estimated using the values below. Please contact us (info@flt.com) for additional IES files or the lumen levels for your specific location.
The lumen output of 3000K LEDs is 92.3% of the 4000K.
The lumen output of 2700K LEDs is 80.8% of the 4000K.
The lumen output of 1850K LEDs (Nightscape) is 78.2% of the 4000K. 
The lumen output of the Amber LED has 37% of the 4000K white’s lumen output.