how long do they last if you use them for 3 hours per day?
56118
I ordered mine in October and just a few started to dry out. I teach 5 classes a day.
322697
five to six hours is the best I've gotten from them. If your getting 4.5 hours of use out of them you're doing ok. I've had 2 sets and they both got about 5 to 6 hours of use before I had to plug them in. Bob
1548645
They will last all night and probably 2 to 3 nights. They are powered by three 1.5 volt lithium batteries and can get pricey. However, they are nice and soothing. They contiuously change colors
1847533
I usually get 1-2 days of use out of them depending on my volume settings. Definitely a full day's worth, though.
723171
They are designed to last approximately 30-45 days. However, I have seen customers that have gotten much more time out of them. An average usage time would be about 2 months.
47520
Mine last between four and five days depending on how long you have them on.
953543
MIne are lasting quite a long time. Sseveral years and on for as much as 12 hrs per day.
1632829
I can not say 2 hours but I would recommend them with out a doubt. Great product.
701
They charge daily and then last til about 3am. But they are not bright at all. Hope this helps.
233311
Yes, you throw them away after one use. That being said, they last for ~12 hours.
1899290
I don't know. I use them within a week of charging. Some that have set for 6 months still have a bit of charge to last at least an hour probably, but I didn't pay attention.
1103325
The batteries will work for days. The comfort starts to fade for me after about 4-5 hours. The top of my head starts to become irritated from the headphones. Still, not bad for a few hours and individual results may vary.
683127
They last a normal length of time. Do not recall how many hours. More importantly is that the light is not very strong. Depends what you need them for but they do not illuminate very much.
159306
it has lasted a good 16 hours on one charge but i think if you charge them fully they may last a little longer. hope this helps. another thing the price is right?
569943
If you expand the Product Description, you'll clearly see the following: Substantially longer lifespan (a minimum of 22.8 years at three hours a day of usage) Note: The bulbs are not replaceable, but 22.8 years is a very long time, and most will last much longer.
1785427
For us, they hold about 3-4 hours. We have 3 in the family and we love these.
1206204
They're supposed to last 90 minutes, however, I tested mine and they ran for almost 3 hours, better than advertised.