There is no question the the stock lights are brighter than the lux AE's. (at least for me) This is obvious as seen by my initial pictures at the begining of this thread.
It makes sense that the color plays a part in not being able to see them in direct light. However, if they were brighter I don't feel we would have this problem. Look at the factory LED's.
For the record, the pic taken above in direct sunlight was taken from 12 feet away and I kneeled down trying to give it the best angle for viewing.