I can't find much info on the output of these lights, but I'm going to go out there and say they probably are not going to be good enough for an anemone. They seem to be recommended for zoos and such which do not have the level of photosynthesis dependency as anemones. Anemones require high output lighting and these don't appear to be. If you have confirmed info stating otherwise, then good. However, if not, if your local fish store has adequate high output lighting in their reef tanks, I'd recommend asking them to adopt your anemone otherwise he's likely not going to make it.
SWF.com sell this lighting and it is rated 10,000K.
See if your anemone will take food. Fresh quality raw shrimp, a piece the size of a pea. If it will take that wo regurgitating, then offer every 3 days. Must be FRESH and QUALITY.