ILLUMAGEAR HAWF-01A Halo 360-Degree LED Personal Safety and Task Light, for Hard Hat (3-(Pack))
Brand: Illumagear

The Halo is a cord-free 360° Personal Safety and Task Light that attaches to any standard hard hat and produces a ring of light around the wearer, enabling him or her to see and be seen in all directions at all times. Battery charger sold separately.