I have a crappy articulating arm light that I bought at a yard sale for $5. It makes noise, both in amp guts and in the room. It works fine. But, I'm just chiming in to make you all aware of a bench light you SHOULD NOT buy...
This past Christmas I bought a magnifying lamp for my Mom, she likes to do all that artsy craftsy stuff. I got her this one:
http://www.ebay.com/itm/5X-Magnifying-L ... 43d7224523
About a week after use, it caught fire. It didn't spread anywhere, and she was able to chuck it outside into a snow bank. Thankfully! I contacted the seller, they were more than helpful and they refunded the total price. So, this little PSA isn't to talk bad about the seller of this auction at all, if anything praise them a little. (It's not like they made the product.)
Just be aware of this unit, don't buy it.