Moon Shield

The 2015 Moon Shield is a taillight. Exceptionally light, easily and tool-free mounted on seatpost, pack or helmet, and providing as much as seven hours of flashing illumination, the Shield is an excellent taillight for regular city riders. Efficiently projecting across a 58-degree span, tailgating drivers will be very aware of your presence. Modes include two flashing and three steady; the Low mode is excellent for late-night trail follow-the-leader.
A good taillight.