Whether you're riding on the streets or the trail, you won't have to quit when the sun does. Wherever you ride, make sure you're seen with daytime visibility from more than 1 mile. It projects a steady blast of 800 lumens for up to 1.5 hours. Now that's bright. So smart, it can adjust to ambient light1 and speed to save battery life. This headlight plays well on its own or when paired with your Edge bike computer. It's up to you. Mount the headlight on your handlebar or on your helmet. Shine bright with 5 light modes - no matter the conditions.