For starters I noticed that it takes 3 D size batteries which are not included. You have to remove the bottom of the lantern to put the batteries in. Once you have your batteries in there are two arrow stickers to help line the bottom cap up so you can tighten it. I found it to be a little difficult to get it to lock tight, but once I did it was very tight. While I was looking at the bottom of the cap I noticed a little green hook which lays flat on the cap unless you want to pull it out and use the lantern to hang from a tent or hook. This is a pretty cool feature if you're in a situation where you want to give an area light, but you don't want to set it down or use your hands to hold it. Plus the hook stores nicely back into the cap.
When I used the 300 Lumens LED Ultra Bright Lantern I found that the low lighting would be perfect for bedtime tent stories or if you had to get up in the middle of the night and you didn't want to disturb anyone. The high mode is pretty bright and if you needed something well lit than this would do the trick.
I'll probably keep mine in my car since it's small enough to store in my console and if I'm ever in a situation where I need a light I'll have it on hand. This was a great tool for the price. You can purchase it on Amazon below.