When you're out hiking or camping, it's important to try and squeeze as much of your gear as possible into very little space. Hence, tools with multiple uses are sought after, since they mean only having to carry one item to accomplish many tasks. This LightCap is a strong plastic one-litre water bottle with a solar-charged LED light inside the cap. It charges fully in just four hours, and a single charge lasts for hours. Each cap includes a red low-power LED that will easily last all night providing a gentle glow that won't affect your night vision, and a bright white LED for stronger ilumination. $24.95 USD.