Optical Lamp For Cp

Does anyone use a book-reader-lamp to improve quality of screen.
I saw this kind of lamp in http://www.classpad.org/catalog/
named as Ultra-Optics BK-FLMBX light and costs 10$;
however, u can find it on other online store more cheap i.e. 7.8 $
Just make a search on Google
It uses 2X "AAA' size batteries.
I khow that it closely fits to classpad.
I'm planning to buy one but I couldn't find it in my country.
I don't khow how/where.

I really need your help!
It's urgent.
Btw, I have no Credit Card now.

I have found another optical lamp.
less expensive!
This robotic Lamp just cost less than 3$ in my country.
this kind of lamp is easily attached to CP
and also it is easy to put it in your pocket!
You can find it on ebay.
search "book lamp+pop up".