The Bell Lumina Light Series is our brightest option – perfect for the rider who wants to “See and Be Seen” in low light conditions. Lumina lights utilize advanced lens designs and reflector optics, along with brighter, flat LED technology to light up the road ahead of you while their diffused beam pattern makes you more visible to traffic and other riders. Our Lumina 2.0 light set easily installs without tools and includes 1 Li-Poly battery (front) and 2 AA batteries (rear). The high-powered headlight offers 3 modes (high beam, low beam, and battery-saving strobe) while the tail light operates in steady and strobe. And because all Bell lights are tested and rated to industry-recognized FL-1 standards, you can rest assured they perform as advertised. Headlight specifications: Brightness: 240 lumens (high); Run time: 1.5 hours (steady) / 9 hours (strobe); Beam distance: 224 feet. Taillight specifications: Brightness: 10 lumens; Run time: 45 hours (steady) / 120 hours (strobe).