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8.1 oz | 320 lumens | $90 | www.blackdiamondequipment.com
At first glance, the clunky Icon—the heaviest headlamp we reviewed—may seem better suited for coal miners than for runners. The Icon’s large back panel, with four AA batteries, made it less comfortable to run with than the other models we tested. But runners who run through the night in 100-mile or 24-hour events may find the added bulk worth it. The Icon lasts longer on high (75 hours) than most headlamps do on low, so you can run confidently all night long and not have to fumble with batteries in the dark or stumble over roots when your beam dims a few hours in.