FOLSOM, Calif. —

It’s 6 p.m. and already dark in Folsom, but the chill of night isn’t stopping a group of dedicated mountain bikers from hitting the trails. Every Tuesday evening, they gear up, flip on their high-powered lights, and take to the forest for an exhilarating ride under the stars.

"I like to keep riding, so we ride year-round," says ride organizer Terry Ash. "The night ride is essential."

With daylight saving time ending and sunset arriving earlier, these after-work riders have had to adapt. Their solution? Bright LED lights — serious ones.

"You need really good lights — one for the handlebars and one for the helmet," Ash explains. "So you can look and see where you’re going. Really bright lights and big batteries."

Measured in lumens — a unit of brightness — many of the r

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