Do you have a flash you can get off camera? If so, just use that instead of the CFL. If not, you ought to get one for this and so many other things. I have a cheap Yongnuo Y560-II flash and a couple of their radio triggers and I am learning how to use it. You could also use that 5900 K solar power light source to power your light box.
It's funny, I grabbed a cardboard box from work Friday and was going to do the exact same thing this weekend but my better half decided last minute to go to her brother's house in Stockdale. Home now, so maybe this evening I will have some shots to show off. In the meantime...
I took this quick and dirty "product photo" last week. Only post was tilt, crop, and convert to jpg.
This is the "Studio" I used.

"I cannot undertake to lay my finger on that article of the Constitution which granted a right to Congress of expending, on objects of benevolence, the money of their constituents." -- James Madison