In a zombie world the power grid will inevitably fail, making night an extremely dark environment. Candles, flashlights, lamps and other interior light sources will suddenly be the equivalent of a “come attact me” sign to any zombie or hostile human searching for places to raid.
James Wesley Rawless of SurvivalBlog.com echoes this point:
“Your house should look anonymously dark, like those of your neighbors who have already run for the hills, or are without power.”
To avoid unwelcome guests cover all windows with heavy black plastic sheeting. Trash bags, blankets and other improvised black-out precautions tend to leak light, so if you don’t have the proper material you should consider illuminating interior windowless rooms only, and even that at a minimum.
Rawless also recommends installing infrared, motion sensitive floodlights to the outside of your house. Invisible to the naked eye, these lights will provide an early warning system when used with night vision goggles and a solar power source.
For a less extreme alternative, consider setting up dummy lights in abandoned houses up the street or on another block to attract any roaming attention away from you location. With good sight lines, you’ll be able to monitor neighborhood activity from the safety of your blackened shelter.