How many hours does it last and what happens when it stop working (i.e. does it start to flake off)?
1148342
1st, start by putting on a lite layer. Wait till it dries or or longer if you want . Gently wipe off all white residue. It last for appr. 8 hrs. Does not flake off. You might need moisturizer. Put on without pulling. Wait couple min then makeup. Nothing much happens when it wears off. I just look a little tired. if you want wash face and start all over again. just remember lite layer is all you need.
1148343
I don't like it all. It does not look natural, it is flakey and chalky looking.
1148344
For me the effects last 4 to 6 hours depending on activity factors. Unless you over-apply there shouldn't be any visible residue to flake off.
1148345
works great for dudes we don't need makeup and it works perfectly for my laugh lines, i am 27 and i don't want any at all since i do modeling. This takes care of it perfectly.
1754928
It has lasted in my fridge as long as overnight. It all depends on how low you press the disc/how much air you take out! Hope this helps!
1073046
I've had mine for one month and I use it every night for 1-3 hours. It stopped working last night, and now when I turn it on it immediately produces a burning smell.
1986945
After 2 hours it stops working. It doesn't continue to whiten for 8 hours, that would be dangerous. I accidentally fell asleep on the couch with them on one day, but I really don't recommend sleeping with any type whitening strips, only bleaching trays. These adhere pretty good, but I still personally wouldn't sleep with them on.
78169
two of the reviews state that it shuts off in 20-30 mins... and two answers here say it stays on????
1323070
Sleeping/ standby, it lasts a couple days. Being used mine lasts about 4-5 hours. But im sure it depends what you're doing such as surfing the web, making a cd or something.
2034934
Seems quite lasting. Mine still works well after 6mth. But I'm not a frequent user though
32704
I haven't actually timed it but my guess is that it shuts itself off in about two hours. For my use in walking the dog and having it on at the fitness center I don't find this to be a problem and actually a good feature in the event you forget to turn it off. There is no warning and I don't know if this feature can be turned off. Ooooops, I learned something from the response by Walter.
1610271
I donn't know how long b-4 auto shut off will occur. My unit never appeared to shut down. The light remained on....always...hour after hour, day after day. I believed mine was defective. I believe this company has a HUGE defect ratio. But, it is cheap. Remember what Grandmaw said..." you get what you pay for."
1885332
I don't know an exact amount of time, but if it's of any help, I used it to shoot weddings and it never died on me. So turning it on and off sporadically for 8 hours is not a problem. I loved this thing, but I broke the plastic hot-shoe part, and now it's useless. If you baby that plastic mount, it's worth ever penny.
25152
I've had mine for almost 2 years. No problem. Don't see why there'd be any flaking - there's nothing that would scraoe or scratch it.
539497
I've mostly used it on USB, but from time to time it comes unplugged and I dont notice til days later that it's still running. I've never attempted to use it for 80 continuous hours, but I'd say it lives atleast 60 before it needs a charge.
159116
The battery should last 9 hours on low and 90 minutes on high or 160 minutes on strobe, this is continuous use, I rarely have to charge mine, I have ordered 3 of these, one of my own 2 for gifts and have had no problems, not sure of warranty, my papers say olight will repir or replace without charge any product or part which is found defective within 24 months of purchase after 24 months labor for repairs are still free however the parts for repair are not, this does say it excludes battery so I assume if it isnt holding charge they will take care of you, mine is over 2 year old and still working great !! The battery should last 9 hours on low and 90 minutes on high or 160 minutes on strobe, this is continuous use, I rarely have to charge mine, I have ordered 3 of these, one of my own 2 for gifts and have had no problems, not sure of warranty, my papers say olight will repir or replace without charge any product or part which is found defective within 24 months of purchase after 24 months labor for repairs are still free however the parts for repair are not, this does say it excludes battery so I assume if it isnt holding charge they will take care of you, mine is over 2 year old and still... » Read More The battery should last 9 hours on low and 90 minutes on high or 160 minutes on strobe, this is continuous use, I rarely have to charge mine, I have ordered 3 of these, one of my own 2 for gifts and have had no problems, not sure of warranty, my papers say olight will repir or replace without charge any product or part which is found defective within 24 months of purchase after 24 months labor for repairs are still free however the parts for repair are not, this does say it excludes battery so I assume if it isnt holding charge they will take care of you, mine is over 2 year old and still working great !! « Show Less
1766789
Have had ours since September and have had no issues; daily use of 4 to 6 hours. Just keep in mind computers are like cars, every batch can have a lemon.
2053931
it depends on the frequency you use it ,normally it will last about 3 days.thanks
1276940
Mine shuts off after 2 hours. However, the clock stays on. You'll know when it has shut off because the light becomes a dimmer blue.
1785654
Mine has stayed on and functioning for over six hours. Have yet to run it down.