Emergency lighting luminous efficacy

Greetings all,
I have the following issue,

When making an emergency lighting calculation for a small room with 1 luminaire, I expect the same value for my normal lighting as my emergency lighting. (LED Driver settings is also 100% for DC power.)
Normal calculation is 410lx and EM calculation is 150lx.

How can fix that the EM calculation is the same as my normal? The luminaire itself is already on 100%.

Thank you,
Robby

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