I game and work till the wee hours of the morning and I hate to use the keyboard in the dark, needed something that could illuminate my keyboard(and desk) and at the same time save a bit on the electricity bill at the end of the month. I've been using it for quite some time now and I can honestly say that it does the job perfectly.
It's a simple USB powered light. Plug it in the USB port and bob's your uncle, you have light. It's very flexible where you are able to bend it to your hearts desire and illuminates very brightly.
Only thing that I think that it needs is a little on/off switch. I use it on my desktop and everytime I dont need it or want to switch it off, I need to unplug it. In the beginning it's no bother, but after some time it becomes a hasle(BUT THATS JUST ME).
All in all it does it's job perfectly and would recommend it.