Sigma's small and bright safety light combo, the Quadro X/Tailblazer, is ready to light the way! The little Quadro X front light packs a big punch with its very bright 1/2 watt LED so you can be seen from up to one mile away. With up to 40 hours of run time on 3 AAA batteries, it's easy to appreciate the low weight and small size that makes the Quadro X very portable. The Tailblazer has a visibility range of up to one mile, 100 hours of run time and three modes. And, of course, they're installed without tools!