You need to hit the hotkey that freezes the tooltip on the screen, then hover over Force Conduit to get another tooltip about it. It's kinda awkward. :P

I slept on one of the best act 1 weapons in the game because I didn't figure it out either (I think the hotkey is called something like "expand tooltips"), and a weapon being invisible didn't sound like an outrageously awesome property by itself to me.