Review on Seattle Sports FireLid LED: Illuminate your Nalgene & CamelBak Wide Mouth Bottles! by Christian Barnes

This is amazing! No leaks and my 48 ounce lantern turns into a great flashlight! It's a handy device that takes up virtually no space since your water bottle needs a cap anyway. I'm going hiking this weekend 15-17.20 and will report back on how the trail is going. So excited to use it. Updated 05/16/21. This thing is so cool and still works. It was more practical than I imagined!