Similar to the deal earlier in the year a decent discount on Garmin's light for bikes Pairs to your Garmin Edge GPS unit (where it adjusts based on the light / speed) Other places have the …
From Amazon: High-intensity cycling headlight for urban and trail use that’s visible in daylight from more than 1 mile (1.6 km) away Projects a steady blast of 800 lumens for up to 1.5 …