[JeanPierre]

I joined to comment on this issue.

I am on my 2nd Kobo Aura One now. I can't decide whether this one is better or worse than the first one, but the lighting is certainly not even with a brightness setting of 1-10% and a comfort light setting between the maximum to 2 notches below the maximum (which is the warmth of my incandescent lighting at home, and the setting that I would like to use it at night).

Based on a photo I took of the lighting of the first one, I would have to say they are identical in pattern, but my memory of the first was that there was an overwhelming red splotch in the bottom middle, and of the new one there's a green splotch on the left, and then less intrusive alternating red and green lights along the bottom.

I am surprised to see such a high number of votes reporting models with even lighting at all levels of warmness. The problem disappears at a warmth setting around 50%, or a brightness setting over 20%. Those settings are too warm and too bright to read in the dark comfortably though, in my opinion.

I am currently deciding whether to return the item for a 2nd replacement, or just live with it. I am writing just to share my experience with any potential customers considering purchasing a Kobo Aura One. Aside from this issue, which only manifest reading in the dark, the reader is first class.

Update - With this device, it turned out to be 5th time's the charm. My 5th Aura One (the 4th replacement) has perfectly acceptable backlighting, and is a delight to use.