I have started to swap out my home landscape lighting with these same LEDs. I find that if they are not properly pointed the can leave me with with a blind spot for a few minutes. The bollard light looks interesting as it may be more diffused.
The bollard is very diffused and very low power. But, just one will give enough light to keep you from tripping over stuff near it. The floods are a bit brighter but not crazy bright. That's why I use one to up light the awning. The whole thing just glows a nice soft light with no bright spots. I also really like the color temperature. They're probably around 2700k... about the same as a dimmed incandescent so they lack that cold bluish hue that most LEDs have.
I really like the idea of a single power source for the lighting but am concerned about the wiring being a trip hazard.
I do agree that the wires could be a trip hazard. I consider my lighting to be part of my kitchen. The battery box sits under the prep table by the stove and the bollard goes near by... close enough that you wouldnt walk between the light and the battery. The flood is atop the "lantern pole" that is attached to the prep table. So, again, the wires dont run where you might walk.
One of things I find most cumbersome is that each lamp or light source that I have now has its own set of batteries that need changing or charging.
The 9ah security battery are a pretty good choice for this sort of thing. Using solar to recharge them is very easy but it's even easier to charge them from the vehicle. I use a DC-DC charger connected to the truck to get the job done, but I suspect it would work fine to just connect one directly to the vehicle's electrical system... dont forget the fuse though.
Since I have anderson connectors in a few places around the truck, depending on how I set up camp, I dont always need the battery box. Instead, just plug them into the truck's aux battery. It's a pretty flexible system provided you can get past the wires.