Lightweight, waterproof and super bright, the Luci Outdoor 2.0 collapses down to just 1 inch, giving you plenty of room for all your camping, hiking, climbing, kayaking or do-anything gear. Extremely durable and completely Solar powered Four modes: low, bright, super bright, and 1-second flashing. No batteries needed. Charges in 7 hours direct sunlight; lasts up to 18 hours; dual straps (including adjustable base strap).