Energizer 100 Lumen LED Headlamp

This headlamp offers up to 19 hours of runtime on Low mode. It features a shatterproof lens and is impact-resistant up to 1 meter. The adjustable headband fits head sizes from 5.5 to 14.25 inches in diameter. The price drops from $29.99 to $6.75. Shipping is free for Prime members, or it adds $6.