Amazon has the Energizer 315-Lumen Rust Red LED Headlamp for $14.35 - 50% off coupon (clip "Save an extra" coupon) = $7.17 with free shipping on $25+ or with Prime. 

Illuminates up to 85 meters in high mode, water-resistant IPX4 rated, 5 lighting modes, up to 35 hours of light in low mode, runs on 3 AAA batteries (included).