If you have a GoPro mount on your helmet and have tried to mount a NiteRider light on the same helmet you'll likely to find that they both want to sit in the same spot. So this mount will allow you to snap your NiteRider light into the GoPro mount. Easy on, easy off.
Compatible with all NiteRider lights except the MiNewt and Lumina series.
I have only used this with a Pro 1800 single light model. If you have a double light model (Pro 3600 or older twin halogen) they might be too heavy. Not sure but just a warning.