GEAR AIDNi Glo 2” UV Rechargeable Glowing Keychain, Glow-in-the-Dark Accessory for Keys, Camping and Outdoor Gear

These are really cool little tubes and are more durable than I expected. I have one on my motorcycle key, which inserts on top of the headlight assembly, so this little guy spends hours every day bouncing around in the wind and rebounding off the chrome, and hasn't even gotten it's first scratch. The included keychain is good quality, too.When in bright sun, like my bike key usually is, it will charge quickly and shine very brightly if taken into a dark space, but the brightness fades to a dull glow rather quickly. It also takes a bit to change using a bright flashlight, though a UV light does the job faster, but again, it fades to a dull glow within a half hour.Basically, if it's daytime and you drop your keys in the shade or into a dark place like a sewer grate, you'll probably find them very easily. If you lose them in the dark, it will could help you find them using a bright flashlight, but only if you sweep slowly enough to allow the material inside the vial to charge as the beam passes. Just don't expect it to still be glowing through the night, even if it was in direct sunlight all day long.It's much more cost effective than a tritium vial, but not quite as convenient. Then again, with these you don't need to worry about carrying a radioactive isotope in your pocket, either.The included photos are comparing this item to two other glow in the dark keychain I own. The Ni-Glo is clearly the brightest, by far. It also retains its luminesce much longer, but it's still only for an hour or two. The pics were all taken at the same time using different shutter settings because I couldn't decide which best illustrates the difference between the three. They had all just made the morning journey home from work in my pickup and had the same amount of light exposure.

Charge it after receiving for best results, super bright!

The product is great for what it is, a little rechargeable glow stick that recharges with light and lasts up to 12 hours. This should not be confused with the tritium tubes that glow on their own for 15+ years.

They glow good

I have a bunch of glow-in-the-dark stuff, from stickers to watch straps, to wall stars, frisbees, water bottles, phone cases and more and these keychains (which I bought in white/clear and green) are the brightest glowing thing by far.Just walking into my home from my car has them charged and glowing bright once I'm inside.I love that they are filled with a powder, too. So you can charge it and then shake it and charge what used to be in the very middle... Meaning now the glow from the powder in the middle is also helping to recharge the powder that's towars the outside, if that makes sense. (That part's a little harder to put into words, but it's clever if you ask me.)Hot tip if you want to charge them at night: Use a UV (blacklight) flashlight. It charges them literally probably 10x stronger than a regular flashlight or light bulb, more equal to a charge from direct sun.Anyway, these are great, and already more useful than I anticipated they would be.

I was a little skeptical at first, I’ve never heard of glow in the dark things that could last for “hours”. But these do last for hours! I attached it to my water bottle which I carry throughout my house, so it got some sunlight and regular ceiling lights. I left it in my pitch dark closet over night and it was still glowing very faintly when I got it in the morning. Leaving it in sunlight leaves it glowing very brightly for a good few minutes and slowly gets darker over the course of an hour. It’s still visible in decent lighting by then! I will definitely be keeping thaws and finding a good use for them bc they’re just cool. Who knows? Maybe they’ll come in handy.

The media could not be loaded. This product is truly amazing, it's bright after a small charge in the sun or just keeping it on the side of you with keys. It's all weather proof and I'm definitely buying more.

Charged the glow stick under UV light for 15-20 mins. They only stayed bright for about 10 mins. Within 30 mins, any useable ‘light’ from the marker is gone. These do not last. Will try longer charging, but in no way do these last a claimed 10 hours. Pretty useless.Update…can’t even give these 1 star. Useless.