I couldn't easily find any great info about the "light up" in English, but here's a site in Japanese:
http://like.o-oku.jp/n_kyoto_tokubet...2007_haru.html

If you run it through something like Google Translate, you should be able to get out most of the important information. From this list, I'm pretty sure the temple with the lanterns that I mentioned earlier is Shorenin which unfortunately doesn't open again until the 28th.

Alex