Oups! Now it's better.

Does the Lux parameter in LC correspond to max degree? I've a question about another fixture: FutureLight MH-640 Wash

In LC, it's specified at 5752 Lux / 30°. In manufacturer photometric details:
6560 Lux @ 5m @ 8°
4051 Lux @ 5m @ 22°

Which value should I use?

Best regards,
nsunier

no, Lux parameter in LC correspond to max. lighting output. Usually, max. output is on the min. angle. But some Lux corrections may be done, due to lamp spectrum details. For example, Leds are looks brighter than Lux they have. So, you can correct the light output a little bit by your experience.