It's hard to tell. I like them as is, especially the level in the "daytime" pics.
Although they are spotlights so they should be bright but at the same time, you don't want to blind someone trying to get a closer look in the Iris.
Can they be turned on or off separately from the interior lights?
As far as the LEDs working, I have read from different sources that a good test is leave them running for several hours or so. If any are going to fail, they supposedly tend to do so early on and this helps weed out those defective ones