The PackLite Max Phone Charger is solar inflatable lantern & phone charger. It packs flat and inflates into a lightweight, waterproof, 150 lumen lantern. LuminAID invented solar inflatable technology based on a simple idea: inflating diffuses the light, similar to a lantern, and protects your eyes from harsh glare. It twists flat to less than 1" thick and inflates into a 6" cube. Lightweight, portable, waterproof, and super bright-- what else do you need?