Night road rides and commutes call for lights at both ends of the bike, and the Allty 800 V2 Front Light + SeeMee 50 V2 Rear Light is a front and rear light set that covers both. Up front, the Allty 800 V2 puts out 800 lumens, and at the back the SeeMee 50 V2 uses an Optillumin lens, which spreads a bright, even glow that shows from the side. Both lights lock against accidental switch-on, so a 3 second hold on the power button, with the light off, keeps either one from waking in a bag. What Our Gearhead(R) Experts Are Saying:"On night road rides, the anti-glare lens laid a clear, even beam across the pavement ahead. At cross streets, the side lighting made the bike easy to spot from the side."