LEDs measured on the test bench can produce different photometric and color results in actual operation mounted on the PC board. Also measuring slight color and flux differences between discrete LEDs mounted in a module is not possible with typical LED measurement set-ups.

LEDs measured on the test bench can produce different photometric and color results in actual operation mounted on the PC board. Also measuring slight color and flux differences between discrete LEDs mounted in a module is not possible with typical LED measurement setups.