What Our Gearhead(R) Experts Are Saying: "I use this combo almost daily since it's bright enough for early morning tempo rides. I love that the rear Square light has multiple flash modes that really grab attention. Mounting is fast and solid, and I get peace of mind knowing cars can actually see me."Early morning rides and late commutes call for serious lighting. The Knog Blinder 900 & Blinder Square Rear Light Set is designed for road cyclists and commuters who expect dependable visibility, long battery life, and a sleek, integrated setup that doesn't compromise performance. This set brings together Knog's premium road-focused beam in the front with a punchy 100-lumen rear light built for real-world visibility. The Blinder 900 features a lithium-ion battery delivering class-leading power-to-weight performance, and multiple mounting options allow seamless cockpit integration whether you're mounting on the bar or beneath your computer. The Blinder Square in the back offers eye-catching visibility up to 1500 feet away, thanks to eight flash patterns and a smartly designed beam. Waterproof, USB rechargeable, and tool-free to install, this light set elevates your ride and your confidence.