Just like the regular RedEye rear light, the Exposure RedEye Helmet Rear Light is a specific version that attaches neatly to the Joystick or Diablo to produce a powerful lightweight rear light.

Encased in a tough CNC machined casing and fully waterproof.

Battery: The Redeye plugs into the back of any Exposure light that has the Smart Port Technology. No need for batteries for your rear light ever again
Brightness: 80 Lumens on Max Run time:
MaXx-D - 2.55hrs Low - 16hrs.
Enduro MaXx - 2.45hrs Low - 12hrs.
Race MaXx - 2.30hrs Low - 8hrs.
Joystick MaXx - 2.15hrs Low - 6hrs

The RedEye will reduce the burn time of the light it is plugged in to. Only one smart port accessory can be used at a time