To explain why it is better than an ordinary lamp takes more little grey cells than I possess. I am told it is a full spectrum light which acts as daylight and that will do for me. Does it work any better than any other table lamp - certainly does!
It gives a very clear crisp light without 'hurting' your eyes and the colours and the definition of a piece show up really well and accurately. I am very, very impressed.
For anyone who wants to consider it and has a Jo-Ann's near them, when I bought this they had a ton of different sorts. This was midprice at $50 but had 50% off! I considered a lovely (less expensive) little one which folded neatly and even had a carrying strap so you could take it to clubs and workshops (?). As I don't really do that it made more sense to get one more suited for lighting a larger area.
When I get back to the UK I am going to take a look for full spectrum light bulbs for the main centre light in my room - seems the easiest solution if they exist - with fittings for a normal ceiling rose.