The Halo Light 360-degree personal active safety system from Illumagear attaches to any hard hat, enabling the wearer to see and be seen in all directions. The 9-ounce portable light ring also frees hands and eliminates shadows in personal work areas. The hardened plastic LED light ring features a tension-spring mounting system, single-button functionality and four light modes: high alert, normal, task and dim. IP67 rated against dust, dirt and water, the light ring has a rechargeable lithium-ion battery that lasts 12 hours on full power (276 lumens). 206/973-4277; www.illumagear.com.