Voltage question for possible switch panel purchase

I am desperately searching for an 8-switch panel to run all the new lighting on my car. I have not been too crazy about most that I've found (look like they belong in an off-road vehicle or something). However, I just ran across this cool, yet pricey, credit card-thin one:

WIRED HDH, HEAVY DUTY AUTOMOTIVE PRODUCTS, COLORADO

"WIRED HDH patent pending Flat Switch Panel (FSP) is the easiest, most versatile switch panel on the market today! No thicker than a credit card, a footprint smaller than a dollar bill, flexible, and programmable makes our line of switch panels the best for ANY application!

Being programmable, the FSP series gives you options on how to control any of your accessories. No other panel on the market gives you so many features straight out of the box!
Features:
Keypad: 1/32" thick and measures 5.5" x 1.75"
Compact control unit measuring 6.5" x 3.25" x 1.25"
8 switches in an area smaller than a dollar bill.
Keypad and control unit are water and chemical resistant. and completely splash proof
Easy, intuitive, "on the fly" programming. Takes less than 30 seconds! See how it works in our video section!
Individual switches can be "programmed" to be momentary or sustained
Individual switches can be "programmed" to be active all the time, or only when the ignition key is on
Each individual output is electronically fused for 2.5 amps - letting you run many accessories direct, or adding relays to run anything else!
Automatic low voltage protection - shuts down your accessories if the battery drops below a certain level
Water and Chemical resistant. Completely splash proof
Keypad is UV resistant for long life when mounted in open cabs
Switch life rating is >1,000,000 activations
Comes with WIRED HDH 2 year warranty"

Well, my first concern was the part where it says that each output is fused for 2.5 amps. Is that enough to effectively control all the different zones of lights I need to wire individually? Don't understand amps....

And, it says somewhere that it will shut down the accessories if the battery voltage drops below 11.5 volts. I don't know how that plays into our whole hybrid scenario with the way our engine 'shuts off and turns back on' as you're driving it. (probably has nothing to do with voltage, but I'm clueless...) The panel is near-$400, so don't wanna drop that much on it if my stuff would just be continually shutting off and coming back on. But, this panel does appear to be the least obtrusive (most of the others are about 8" x 3"-4" in size, which is hard to stick somewhere around the steering wheel where I can use it and reach it frequently and easily). Help, please!?!!?

I've attached the install manual, which has specs and more indepth stuff that may answer something or assist someone who can be of help....