So after seeing post after post of how bad the Oris orange Lume is I decided to give my take... For reference I own watches with Swiss Lumi-Nova bgw9 and C3.
The orange does not get as bright when freshly charged as the others but it is plenty bright and has great staying power. I have found that it last all night. I charged the Oris and Panerai and went to bed at 11pm. And the orange Oris out did my Panerai in the brightness department at 4am. I was impressed... Even non direct ambient sunlight is enough to charge it fairly well. About the same as the other so called brighter lumes. I think the Lume doesn't look as impressive because the orange is already bright so when the lume takes over its not as dramatic of a change.
Anyway I was holding off on an orange Oris due to bad reviews for some time but got a great deal on one and figured what the hell... I'm glad I did.
Pic for reference is after standing in a well lit (by the sun) room in my house then went into a dark bathroom. Didn't even hit it directly with a light...