Having the controls on the underside can be a problem, especially for low battery indicators and such. Imagine somebody spending the extra $50 for that Niterider Lumina variant with the fancy OLED display, and then realizing that the only way it would work on their bar setup was to mount it upside down!

Peter White on his website also points out that lights mounted upside down can have water ingress problems if they aren't designed that way, because water can pool in recesses that would normally just drain out, and eventually seep into seals (he mentions the Schmidt Edelux).

Barfly supplies a neat universal light mount that attaches to the GoPro mount and uses O-rings. Not as elegant as a hard attachment, but you can rotate the light any way you want. Here is one attached to my L&M Urban, though that particular model has a symmetrical beam and even the low battery indicator is on the rear so it works equally well upside down.



I wish I remembered I had a couple of these before I spend the $20 for the K-Edge GoPro mount for my (non-OLED) Lumina!

Another approach to solving this problem is to get the Bar Fly 4 MTB mount, which, instead of sitting out front, curves backwards so the computer sits over your stem. Then you can mount the light on your bars however you want. It also should help get the computer out of the way if you want to run a handlebar bag

https://goo.gl/images/jtmycm
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