How does it glow? Batteries or do you need to expose it to sunlight repeatedly? How long does it glow for?
1010079
There are no batteries. The ball will glow in the dark after being exposed to either sunlight or holding it near an artificial light. I never noticed how long this lasts but it seems it glows for at least an hour, probably longer.
1010080
Exposure to sunlight or a lamp makes it glow. It won't glow for hours, but long enough for the dogs to find it in the dark. The ball is hollow, no plastic pieces or battery.
1010081
no batteries. I have the larger one for my dog and the glow lasts quite a while. I love the planet dog orbee toy soooo much. my dog can't eat it. He tore the smaller one into little bits in a matter of minutes but the larger one is awesome!
1010082
It's a light-reactive plastic, but not a very bright glow, just enough to see at twilight.
1010083
Unfortunately it only glows for a short period of time . It doesn't need batteries but it needs exposure to sunlight or a torch or lamplight. Its a durable ball, dog loves it, it is great in the ball thrower but sadly we still need to us other ball with led lights in the dark or risk losing it
1010084
It glows only at night. I've had for about a year and now we can't get it to light. The positive is that this ball I'd super tough and is great for aggressive chewers.
1010085
It glows from exposure to sunlight. If it's in a room with daylight (it doesn't need to be direct sun) as it gets dark it will glow. It's like those stick on stars kids put on their ceilings that glow. It doesn't last super long but it is a nice to feature if the sun goes down and you need to find the ball it comes in handy. The real feature is the sheer indestructible nature of the ball. My power chewer still hasn't ripped it after 2 years.
1010086
No batteries.. Sunlight or lightbulbs. It's extremely bright and will last when fully charged a good 2 hours. We have 2 and use it in the dark and it's quite funny when it disappears in the dogs mouth. Lights on/lights off. Just leave it in a bright window during the day hours. A lightbulb will make it super bright.
1010087
It is the sun . I have had it for quite some time, years, and it still works. Sometimes the light will dim, but in total darkness you can still find it. Then when it regenerates it is bright once again. I think I have had it for at least 3 years.
35742
It's a black light, like the kind that makes certain colors like white glow brightly, only it's not an incandescent bulb, it's 12 LED's which doesn't give off much heat energy, so batteries last a lot longer. UV-A is a color of wave length that is outside of our visible range. Mine arrived kinda silver/chrome in color.
2213913
It's not solar powered. I don't use mine much, so the batteries last quite a while. For constant use, they last about 12 - 24 hours.
1678403
I had to turn it off each time. Thus it has to be turned on and off. Once it stops lighting up, I have never been able to get new batteries to work. While it works, my dog loved it in the dark. He still plays with it ----without the light.
1218157
In order for the foresight t o glow it needs to be exposed to daylight, other wise it doesn't function properly. Leave the hood off. Or drill a hole in it.
1684920
This will continue to glow time after time withe the exposure to the sun or any type of light.
938657
I don't think it would be a good idea to expose it to direct sunlight, rain etc. It is plastic and I don't see any gasket's to protect the batteries. It works great inside though. I use it for a night-light in the bathroom for the evenings.
1533078
I have only used it a few times outside and in the attic for a total of 2 hours. Still working great. I have not had to change batteries. I bought two of these including one for my father. We both like the adjustable beam. Interestingly, when tightly focused the light projects a rectangular shape. We are pleased with the item and think it is priced fairly. Exceeds our expectations. Hope this helps.
641252
Starting at dark, we noticed a low glow until we went to bed so how long after that I don't know. I know at least two hours then after that, don't know! :)You won't be covering much with one package of this. So far we have gotten two & will be adding to it as we can.
863154
This light uses 3 AA batteries, and I don't know how long they last - I haven't changed mine yet. (I started using mine around Dec/Jan.) This is a task light - not a light I leave on constantly, although I do use it frequently. LED lights usually are easy on batteries, so I'm going to guess that the batteries will be good for some time to come. I still love this little light - super bright, lightweight - but not easy to tip over, directional and adjustable, and so convenient because you can use it almost anywhere and takes very little space. Hope this helps you!
1311798
(Addendum to previous answer). Of course, you need to leave it in sunlight to recharge the batteries...forgot to mention that in my previous response.
835304
You can see a slight glow from the back of the unit. I use it in my bedroom at night, and it's not bright enough to keep me awake. I certainly wouldn't worry about the UV radiation.
1508989
You have to hold it close to a light source for it to glow well. It will change color when it gets warm.
1608858
It is best to get direct sunlight or the battery won't get charge properly and your light won't last long. I love this light cause it's on all night but when movement is detected it turns on brighter So the more sunlight it gets the better.
319062
8 hours of direct sunlight is the best, but I think it would light with 6 or 7 hours, It is a really good spotlight, I have had many but this is the best by far!
2147766
It is a very, very faint illumination. If you are sure that it is getting enough sunlight to recharge it during the day, then you should be able to see a light glow at night for a few hours. You do have to look very close. It is a cool feature but not the best one functionally. :D
1462332
Might not be a bad idea, but not required. Try to avoid pointing the light right in your eyes when checking to 'see if it's on'. Instead, point it at a white piece of paper, or white t-shirt. Even in daylight and on 'low', it'll really glow.