Building a LED supplement for my tank.
I have no clue what kind of rocker switch I need to buy for my project. I went to radio shack and they had a bunch of different ones to choose from. All rated differently 6A -125V or 10A - 125V or 6A - 250V and on and on and well you get the point there's a lot.
So can anyone enlighten me as to what I should buy ? I really don't want to plug and unplug the LED's every time I want them to turn on/off.

I'd like the wiring to go as follows (someone please jump in if I have this wrong, it's been many years since high school electronics class). Power cord to on/off switch to driver to LED's.

Or should it go power cord to driver to on/off switch to LED's ??

And also when attaching the power cord, if to the driver, using a TRC driver, directly( I know that rocker switches have a place for the ground to be attached to already), where should the green ground wire be attached to ? The TRC driver only has a Live and a Neutral(the power going into the driver goes to the black and white wires in the above picture, The black/red wires are to supply power to the LED's, the other wires go to the dimmer switch) wire coming out of the driver. Any info would greatly be appreciated.

I at least know I need a SPST rocker switch, it's just the amp/voltage rating that has me thrown. As well as the ground cord connection from the power cord ? . Everything else seems pretty straight forward.