GoPro mounts are incredibly versatile--designed to mount your camera in many locations. That also makes them ideal for mounting a taillight. SON now offers their taillight to fit directly on a GoPro mount. The light can also be adapted for mounting on rack or fender eyelets and many other locations. Notes: - This taillight is designed to be powered by a generator hub. It does not have its own power source (batteries). - The taillight comes with a co-axial cable to connect to the headlight. One pole connects to the taillight tab of the SON Edelux headlight, the other to the (grounded) housing of the headlight. (A round connector is included that can be placed under the mounting bolt of the Edelux headlight.) - The taillight housing is not grounded and cannot be used for the return current. Specs: - Aluminum housing - Built-in reflector - Modern LED internals - Standlight - Anodized black - Size: 41 x 19 mm - Depth: 35 mm - 180 cm (6') co-axial wire - 51 g - Made in Germany