The lux are relative reading that came straight from the light meter. No math or any conversion has been done yet. The meter was located 22.5 feet from the hotspot on the door.
SR91 De-dome 279Lux
SR90 Original Dome 270Lux
SR90 De-dome 487 Lux
80% Lux improvements!!!!!!!!!!!!!
According to Selfbuilt measurement of 112,500Lux @ 1 meter. The de-dome version is 203,000LUX @ 1 meter
SR90 With Dome
Moral of the story: If you want SR90 throw in a SR91 body, dedome it. If you want an INSANE LED thrower then Dedome your SR90!