Super Bright COB LED Portable Desk Lamp - Foldable Travel Lamp with Touch Control, 3 Adjustable Brightness Levels, USB/Battery Powered - Perfect for Home Office, Reading, Camping & Travel

Have been looking at lower watt appliances and their daily use as many lower watt things are not always convenient. This is quite convenient for task lighting if you're able to set it in one place and keep it there (which is what desk lamps are designed for).It's not possible to know how durable the plastic will be over time: The light is very well designed / thought out.On the lowest watt setting, it's quite easy to use this for reading. The more you move and adjust things, the shorter their lifespan normally so it won't get any rigorous testing for that.I put newer rechargeable batteries in it and it's having no problems with the slightly lower voltage of those batteries. Day 3 of a few hours of use a day at the lower light setting and it's still going strong.The USB cord with it works well (took the batteries out to check and also used it with the batteries in - external USB power is used first). The USB cord does not charge the internal batteries and I don't want it to. If you want the batteries or a USB connected battery bank to last, use it at the lowest light setting: I hooked up an inline USB multimeter and the amps noted at 5.11V are: low - 0.00 Amps, med - .16 Amps, high - .39 AmpsThe base does need to be weighted for best use so if ever used with a USB cord regularly, I've pondered putting some flat glass marbles or some stones in a plastic bag and putting them into the base: That kind of weight would not be anchored like the batteries would as batteries are held in tightly. Would I tape the bottom shut if I did that? Probably.Personally wouldn't leave batteries in it if not using it daily - or at least try not to as everyone has issues and leaving batteries in things too long is sometimes one of mine.This is a pretty classic design: I'll never know how long the switch will last until it fails (true of everything - really like the light touch switch). It looks like the lamp would also make a nice (in metal possibly too) daily use desk lamp as it looks like it's possible to change 'the bulb' - which is a newer style light to me (the light looks like a yellow pad).I don't know how long the yellow light pads last. I'm hoping a long time.If you used something like this for occasional portable task lighting and-or reading if it is placed on a solid surface or emergency use (and it will be used for both), if you had some extra yellow light pads and the switch lasted a long time (it likely will), it seems like this could last forever - (a what fails first - the switch or the light conversation as lights used to fail first and now switches might).I did not remove the screws in the lamp head to see how easy it would be to replace the light pad so I'm not sure whether it could be replaced. Any kind of screw in plastic can strip so I won't do that unless something fails on it (like to take things apart if they fail just to see what happened and see whether they can be fixed as we moved away from fixable appliances and maybe someday we'll move a bit more back).Others may have similar battery charging issues (as in making sure rechargeables get charged occasionally so they don't fail): I'm thinking about using this lamp with the USB cord regularly along with the couple mini power banks I have for emergencies so they get regularly charged (and attended to). And, I'll take the AA batteries out and weight the base.If you knew anyone who lost power grid power (but still had the ability to charge a small (USB) power bank somewhere in their community), this would be a great lamp to keep them 'light' functional.Kudos for the combined USB-grid power, USB-battery bank and AA battery option.