The black and dark gray Princeton Refuel 300 Headlamp is stylish and low profile yet delivers up to 300 dimmable lumens. It will run for up to 42 hours on three AAA batteries and has a large, easy-to-operate push-button switch on the top that controls its flood beam LEDs. The lamp is IPX4-rated water resistant, so incidental splashing or spraying won't cause issues, and it weighs just 2.8 ounces—comfortable enough for an evening jog or bike ride, or a hike at dawn.