yeah, that's what it is. The boards in these things are fun to play with. I have never been able to get more than a few mA out of the LED drivers that come with these things. I wanted something a little more powerful, so I replaced the battery and the board with a proper switch mode supply.
I kinda have a fetish for them, I'm always buying them when I see them cheap. But I'm always disappointed that the solar cells are pretty weak.
I've actually used this contraption a bit this weekend; it was pretty handy. Now it needs a couple days in the sun to recover.