The Garmin to GoPro adapter is compatible with all bike lights with male ended Garmin quad lock style base. It can be used with Magicshine's MJ-6272 out front mount, TTA out front mount, any compatible handlebar mount and helmet mounts with the GoPro mount interface.
The upside-down mount is not to be used with the Ray or RN series lights due to the weight of the all-in-one light.
Plastic material, very light weight.
Please note: This unit has 2 prongs and is meant to be inserted into an existing GoPro mount.