I was looking for a desk lamp that you don't need to plug in as I have enough plugs in my socket, I bought a slightly cheaper one first it worked fine until I shredded the usb cable with the hoover and wasn't sure what sort of connection it used (it was a barrel type) so instead of looking for a new cable and getting the wrong size I found this desk lamp which is much brighter and uses a regular micro USB cable to charge it. I believe it has a 1200mah battery inside so you can charge it use it freely.
It's very bright considering and has a charging light to tell when its full, the first one I had didn't even have that! You can change the brightness level by pressing and holding the on button. I just bought my dad one too
No I don't sell these on eBay! Just impressed so thought I would share it. £5.79 was the cheapest when I bought it, there's some for 5.99 if you search excelvan desk lamp on eBay.
Never heard of Excelvan before though!