on what does this run? electricty or batteries or usb?
2045304
Hello Marbe,The unit runs on standard USB output. It does not use batteries and has no replaceable parts. It utilizes LEDs for lifetime operation, and offers a lifetime warranty to the original purchaser. The standard unit comes with USB cable and operates from any device which has a USB port. There are two accessories, one is a converter for mains supply and the other is for car adapter (cigarette lighter).
2045305
Hello Marbe, The unit runs on standard USB output. It does not use batteries and has no replaceable parts. It utilizes LEDs for lifetime operation, and offers a lifetime warranty to the original purchaser. The standard unit comes with USB cable and operates from any device which has a USB port. There are two accessories, one is a converter for mains supply and the other is for car adapter (cigarette lighter).
1715760
It runs on batteries, but can run on AC if you buy an adapter. Mine is still just sitting here, I can't figure out how to get the stuff off the card once it's full...aghhhhh!
1436246
Powered by USB, whether off laptop, desktop, or direct plug with a USB port. I love it!
172241
I'm using my desk right now. Three small batteries are the power source for the lamp. They are included when purchased. There is not a USB connection.
1778816
Battery operated. I bought it as a gift so I can only answer limited questions
1000133
It runs on batteries. You can plug in a 12V power source of your choosing. I use a universal power adapter that came with several plugs and found one that fits nicely.
317478
This unit runs on USB power. There is no need to plug this into an electric socket.
2127157
Does this run on battery or AC power? And, if AC power, does the cord disconnect directly from the unit?
1480486
No not special, standard usb 5 volts. Sounds like a defective cam. You can take the cover apart to check the battery connection.
1323542
USB powered. So far I am loving it. The convenience of being able to move it from one computer to another is a great benefit.
1233715
USB output? Doubt it! It doesn't even have an electrical cord ...battery operated
786405
Electric. Plug it in. I don't think batteries would ever give enough power.
117816
It can run on batteries, but it comes with a plug in adapter to run off electricity.
458505
i hesitated a bit after seeing reginald goodman's answer. mine was powered with the USB for the conversion operation (so is the much bigger one i bought elsewhere. batteries are not necessary), but i THINK i remember seeing a battery compartment because you can carry this thing around with you and the batteries may become necessary then.
2175359
It needs both, you can run it for a short time on just batteries but some features will be missing. The batteries are needed to maintain operation when power fails. You should always have AC power and batteries.
264706
Electric. I have had mine since December. No problems. Couldn't do without it. Worth the money.
2036657
Its powered by lighter cord or usb to your computer only, no battery inside this unit