Black Diamond Spot 400

400 lumens, 2.9 oz, IPX8 waterproof. Red mode saves night vision.

Four hundred lumens in a 2.9-ounce package that runs on three AAAs. The Spot 400 has a red night-vision mode that won't blind your tent-mates, a lockout feature so it doesn't drain batteries in your pack, and an IPX8 waterproof rating — meaning it works after being submerged. Black Diamond has been making headlamps for climbers since the '90s, and the Spot is why REI can't keep them on shelves.