Others say...

"Better than a clip-on book light..."
This item is much brighter than any of my book lights, light weight, and flexible. I wish it was less expensive, but hopefully it will have a nice long life with me and my stories. I also appreciated the fact that it came with a usb adapter.

"Really nice for the price"
All things considered, this is a fine LED lamp. To sum it up:

Pros:
1. Inexpensive
2. Adjustable light output, and VERY bright at max setting
3. Adjustable height, angle
4. Battery (3-AA min, 6-AA max), USB, or AC-powered (though no AC adapter is included with the LPL900)
5. Portable

Cons:
None, considering the price

Caveats:
1. Since light output from an LED tends to be very focused, and due to the strip-style layout of the LEDs on this lamp, overall light distribution can be somewhat uneven if the lamp is not properly positioned/adjusted (i.e., very bright directly under source which fades noticeably away from source). From my experience though, you should always be able to get the exact amount/type of light you need by fiddling with the lamp's intensity, height, and angle options. You can also tape a strip of paper, foil, etc to the lamp to act as a shade which allows even greater directional control of the light output (i.e., angling the LEDs towards you too much can otherwise be distracting/blinding)
2. Cheap, plastic construction might be a turn-off for some. Regarding the telescoping arms, think old school tv/radio antennas, because that's exactly what they are
3. USB cord to power the lamp is extremely short (about 2ft), and the end that plugs into the lamp is a DC barrel connector (i.e., USB and AC will use the same jack on the lamp)
4. The blue LED on the on/off switch is EXTREMELY bright. It can literally act as a night-light, as it literally lights up the ceiling of my bedroom quite nicely

"excellent lighting and portability, multiple power options"
I was going to rate this item 4 stars but changed my mind. For the money, I think it's worthy of 5 stars. If you're primary interest in having a lamp is aesthtic in nature then this is probably not a good choice for you. If, however, you simply want functionality then the design of this light is terrific.

What impresses me most about it is that there are three different ways you can power this light. One, is with an optional AC Adapter, another is by batteries, and the third is by USB. It's this third option that appealed to me the most. On the downside, the included USB cord is much to short and thus when plugged into a PC on a desk one's ability to move it to the desired location is severely restricted. However, that problem is easily solved by plugging it into a USB Hub.

It puts out a really strong light and you can flex the direction of it in countless ways. It's super light. It is a "little" flimsy but for the cost this is a slam dunk.

It's small so if you you're using it on a desk, as I am you will need to move it to use over whatever it is your viewing but that's easily done and the light bar has eight lights that when powered by USB are amazingly bright. I am very impressed. I also bought the PowerLine Universal AC Adapter with USB Power Port Power Line 0900-77A 1300-mA AC Adapter with USB Charging Port. It does NOT work with this light.
I've only owned this product for a day but my first impression is that it's a great value. If I run into problems with it as time passes, I'll update my review to reflect the new information.

"A Useful, Inexpensive Battery-Powered Reading Lamp"
This is a great value. Especially considering that it supports three different power sources: battery, USB, and AC power (via an adapter, which isn't included).

The telescoping arms make the light bar a bit flimsy. A couple braces connecting the two arms would have helped. And, as you rotate the light bar, it flickers, which doesn't exactly instill confidence in the product's quality. But, since the light bar can be rotated freely, I suspect that the light bar is connected to the power source by some sort of brush connection instead of being hard-wired.

Do note that it only requires 3AA Batteries at a time to work. There is additional row of three batteries, but those are for back-up.

I mainly got this for power outages. It also makes a decent flashlight if you need to see your way. Just retract the light bar, snap it into its storage position, rotate the light bar so it's facing outward, turn on the light, and grip the device from the back.

If you need an AC adapter for this product, I'd suggest getting a universal AC adapter (such as this one, Power Line 0900-77A 1300-mA AC Adapter with USB Charging Port, which I don't own and haven't tried). Otherwise, if you already have a USB wall charger (such as the Zune AC Adapter v2, which I have and does work with this product) then you should be able to connect the included USB adapter into that, though you may need an AC extension cord or a USB extension cable.

Also, if you need an idea for a stocking stuffer for the entire family, this is a great choice.

"Great Little Light for a little price"
Easily illuminates an 11" x 16" area with adequate light for reading. For $7 you can't go wrong. I used velcro strips to attach it to my Jasmine book stand.