I have done various LED Projects on my current and past mustangs I have owned and a number of interior LED Projects for friends who wanted some interior illumination. I just recently bought my first AR-15 which was the dicks sporting goods special Troy Defense AR15.
With a kid on the way, I needed something safe to store my guns in, also with the recent shooting it made me very paranoid leaving my AR-15/Glock at home without it being locked up. So I bought a supposedly 14-gun safe (my ass, lol) and put the AR/Glock in there. It is in my basement and bolted into the concrete with 6" anchors now, but the main problem I had was low light. I had a difficult time seeing into the safe (Because its in a finished basement closet room with low light). Instead of buying cheap stick on lights that are battery powered, I opted to get some LEDs to complete the job. I also opted to have a magnetic circuit that closes/opens with the door (like your refrigerator) which kicks the lights ON when the door is opened, and OFF when the door is closed.
Here are the links for products I bought. I prefer amazon because I have prime, and they offer free shipping on most orders $25+.
HitLights Cool White Double Density 600 LEDS Light Strip
LED Connector Strips (Pre-Wired)
LED Connector Strips (Strips Only)
LED Wholesalers 30watt LED Power Supply
Directed Electronics 8600 Micro Magnetic Switch
Soldering Iron (this is the one I use, and recommend)
I have included a full video tutorial on YouTube if any of you need help (if I left anything, or you need any help, please feel free to message me -- I am not an EXPERT, but I am an enthusiast).
Youtube - DIY Lighted Gun Safe with LEDs and Door Activated Switch
Here are a few Pictures of the Finished Project, as well as the placement of the Magnetic Door Operated Switches. I also opted to add a dehumidifier to the safe to make sure that the glock and rifle stay good and DRY :)
Even HIGHER RES Pictures: