If you don't mind the process of finding something (or waiting for something to come up) on eBay too much, I recommend looking for used photo/film equipment out there.
I cheaply sourced two photo/film lamps on eBay.
One is a 500W LED lamp and somewhat blueish, the other is a 330W fluorescent, but of very high quality, it's a very convincing daylight tone (not at all greenish). Especially the latter makes for a very nice room light.
Both were barely used, yet substantially cheaper than new.
The advantage is that you can easily change their angle on one or two axes. I originally bought them for photography and then started liking them as regular room lights, only to later even realize that I basically got myself SAD lamps.
>>DenisM+Ro
No, sorry, unfortunately I can't. Bought mine on eBay.de a few years ago. Now on eBay.com the auction format seems to be hardly used anymore for things like that. Hmm. Many direct imports though. Maybe my suggestion is outdated.