How long does the battery on the LED last?
1289166
I can't help you as I didn't keep the light because it didn't fit my e-reader. I don't even remember whom I gave it to. Sorry
1289167
I've had this for months but I don't read every night. It's still going strong for me. Just realize the batteries are going to have to be replaced eventually. If I had to guess, I'd bet the batteries would run constantly for 48 hours and still be useable.
1090791
Not sure if it lasts 24 hours, since I use it for an hour at a time, but I usually only have to charge it every other week or so. It does gradually dim, but in my experience it stays bright for most of the two weeks, then gradually dims just at the very end until it dies. Incredibly reliable light.
1963278
It typically lasted 3 to 4 hours if I didn't attach USB devices to it. (I usually use about 85% of full screen brightness.)
899803
Dear Customer, If this LED lamp is fully charged, it will last 7-10 hours. Please be noted.
916880
Depends on the brightness set when on battery and how many applications are running. The brighter and more processes there are, the quicker the battery drains. If it's just for light use and not blasted on full brightness it should last about 3-4 hrs, at least that's on my laptop.
1338353
Even if it were actually "lit" by LED, the amount of power used by a single, tiny LED is NOT enough to drain the batteries in any measurable period of time. We're talking at most, a few milliwatts (thousandths of a watt).
2265911
I used to get 2.5 hours but I've now had the light for a couple years and am getting 1 hour. So I ordered another one just now. The light still works great, I'm tempted to take the battery "pack" apart to see what it is and maybe go buy some replacement batteries for it.
1088435
According to UCI (I called them). It will shine/burn for 2 hours @150 Lumens, then it will start to dim and go into power saving mode.
1511918
It's last I good amount but not that long really. I mean if you have your brightness all the way up its obvious that the battery will drain faster.
666877
From all the way dead about 6 to 8 hours for a full charge. When it is charging there is a red led, and when it is fully charged it turns blue. It works great!
944311
I can't say how long the LEDs would last if burned constantly. Mine is turned on for about fifteen hours a day and it is still working fine after several months.
694396
It usually takes 2-3 hours from completely dead to completely charged. The LED will change from Red to Blue once it's full.
835038
LED'S compared to normal lightbulbs last 45 times longer. Average lightbulb lasts 1000 hrs LED 45,000 hours, hope this helps.
154215
Hard to say. I use it to light my keyboard when I'm on my computer in the dark. It's lasted me for about 2 months now, but when I use it I usually only use it for up to an hour and I do use it quite often though.
828859
Since this light uses an LED bulb you can expect 5 hours out of the 4 AA batteries it takes to power it. The bulb itself will give you 100,000 hours or about 10 years of use out of it just keep enough batteries on hand and you'll be fine
45826
All LED flash lights have a hours or minutes rating on them. Depending on how many lumens it has will determine how long the batteries will last. The light I have only lasts 120 minutes before they fade or burn out.
1022473
I don't know as I only use it for 1.5 hours at a time and I never really checked but I am sure you could get 4 hours or so all I can say is that this light is super bright and I sell led lighting for a living.Solid in the hand and overall impressed with the quality...