Oh, I see. You could try to move a lamp next to it for the time being.
Here are some options I found on eBay:
The illuminance exceeds 350 lux within 50cm. It can light up the full coverage of a book, desk,or even the room! (at brightest level). Rated Power: 5W. 3 Color Modes & 14 Brightness Levels. Allows you to focus on your tasks without worrying about disturbing your colleagues, roommates and family.
www.ebay.com
ð¡Great Lighting Quality: Led lights always flicker at non-full load mode. Applications Notebook, desktop, PC, studying lighting, bedside lighting etc. Clip on bedside or headboard and reading in bed, comfortable light brings you comfortable life.
www.ebay.com
The first one is better, but the second one is cheaper.