I have a very nice Stinger flashlight that was given to me as a gift by my manager. It's rechargeable, and it came with two wall mount charging bases...one AC and one DC. We keep the AC charger on our back porch, and use the light to check the yard before letting the dog out. We live in a rural area, backed up to woods, and we get all kinds of wildlife out there.
That leaves me with the DC wall mount charger, and I've been thinking of hooking it up in the camper, much like you have yours mounted. I know I have the 12v power to tap into, with the stereo in that cabinet. I just need to make it happen.