Can I use them overnight ?
1388378
I am not sure what you mean by that question sorry. Using once does make a difference and i wouldn't recommend leaving them longer than 30 minutes. They are a 2 week supply but i did not use them regularly. I did more like every other day. The teeth do become sensitive and i had a concern with the peroxide in it.
1388379
Not that I'm aware of. These really do work great, even compared to the ones I used from the dentist office.
1388380
No. This is from experience when I worked at a dentist office for 10 years. If you go over the recommended time your teeth become sensitive. I fell asleep with them in once and two hours later I was hurting.
832273
Yes you can, I changed mine and they are a little brighter and stay on all night.
317156
That's totally up to you. I like to use them once a week, generally on Friday night so I can feel the energy for when I wake up & be ready for whatever I need to do for the weekend.
433012
I haven't had the chance to have them up for 4 hours continuous. I have only had them on for a few minutes at a time since I bought them. Thanks!
1805086
I usually charge them overnight so I don't have an exact time to "full charge".You may have one or more wornout batteries.
552737
Yes, You can wear them to bed. I forget that I have them on most of the time.
257240
Yes you can, as long as you are not a restless sleeper. They are a bit cumbersome and can make your legs sweat.
655153
The pads are only meant to be on for 10 - 15 minutes. I would not recommend sleeping with them.
1458619
Yes and no. There is a switch to turn them on, but they won't come on in the day time, only at night. But you can turn them off so they don't come on at night.
222948
I suppose you could use them indoors; however, they do not plug into anything. They are powered by a butane cartridge.
1738382
I've had no problem with them freezing overnight. Time-specific, I am not sure.
1142705
I have left mine on overnight many times. No problem. My lights have lasted 12 to 18 months of hard use. We do undercar work and use them all day long. We charge them when they get weak. This us usually once or twice a week.
1408120
I have never tired but the directions say you can . This is a great little heater .Good luck.
274651
yes, 2-3 hrs should not bother you much. i have slept with them on with little irritation by the morning.
336487
No, they cannot be used. I researched other sites who seem to support this. Sorry.
1092457
I have not tired but, I don't see why not. Although it may make you more sun sensitive and you would maybe use it at night only.
1712334
Yes they can...but I always do this right before going to bed then it has the whole night to work. Is a great product and so cost effect NO repairs in 8 years, hope this helps