Porch lights help keep you and your loved ones safe. You don’t fumble for your keys when the light is on—instead, you’re inside the door within moments. The light also deters burglars who tend to avoid a home that looks occupied. Burglars pay attention to how and when you turn on porch and deck lighting.Click to see full answer. Furthermore, is it better to leave porch light on or off?Research shows that leaving your lights on at night might not be effective at deterring crime if there is no one around to see it. And if the burglars do break in with the porch lights on, there is no way to stop it or catch the thieves, if there is no witness around, whether neighbors, pedestrians or police.One may also ask, what kind of lightbulb do you use for a porch light? The recommended wattage for your outdoor lighting is generally referred to in terms of incandescent bulbs. Also asked, what does red porch light mean? Means they have a red lamp inserted in their porch light fixture. Red light allows vision without destroying your night vision.What does a green porch light mean?A green porch light is a symbol of appreciation and support for veterans. Green Light a Vet is a campaign sponsored by Walmart and other military support organizations to raise awareness for veterans, service members and their families.