from the blog
The Illumagear HALO SL is the next generation of safety with 360° of situational awareness lighting. Providing visibility in all directions up to a quarter-mile away.
This next generation of the Illumagear has the spotlight and task light features giving you more control. The single battery provides up to 121 hours of lighting & is rechargeable, no need to ever for spare batteries.
The "Brake-Light" versions have 12 LEDs in the back clearly indicates the direction the wearer is facing. Fits most hardhats and is water-resistant with an IP67 rating.