I'm not sure where you're from, but we call them chicken lights around here. It's kind of redneck looking in my opinion, but they usually aren't bright enough to blind other drivers or cause problems with oncoming traffic. If you like the look, go for it, but if you're asking my opinion, I say no. As far as installation, that would depend on what you bought. The ones you linked appear to flush mount which means you would have to drill a bunch of holes to mount them. You would likely want to wire them to the park light circuit or a separate toggle switch. If they're LED, you can probably run them directly from the park light circuit without a relay, but incandescent bulbs would require you to use a relay and fuse that is triggered off the park light.