These glow sticks glow for a pretty long time. They have some really pretty colors when they are "activated" and are easily activated on purpose. I had a few that got bent and activated themselves before I wanted them too. I just used those to light up rooms in my home so I wouldn't have to turn on lights and use electricity.
I managed to not break any of these open which I was surprised. Usually glow sticks bust open when you bend them too much to activate them, but I didn't have any problem with these. I usually walk away with my hands glowing even after I wash it all off. Which is cool but not good for you at all.
If you want to buy yourself some glow sticks that are long lasting, bright, and fun, head on over to Amazon and click here. I really love these and they are a very good price and work really well. You get 100 for $9 + shipping. It also includes 100 of the connectors so you can make anything your heart desires, bracelets, necklaces, glasses, you can form words with them etc. How cool would it be for someone to spell out "Will You Marry Me" in glow sticks and take a pic and send it to you or take you to the room they are located and then turn out the lights so you can see the message!
I use these and I love them and I really recommend them, if you are in the market for glow sticks! There may be a few in the bunch that don't glow (had that problem with a few of them) but for the money I can't complain about a few duds. You can't find glow sticks of this quality anywhere else!