Blue porch lights are sometimes associated with the use of heroin or opioids, while green porch lights can be linked to the use of marijuana or other cannabis products. However, it's important to note that these color associations can vary widely and may not always be accurate.
Yellow porch lights are bug lights. By bug light I mean they are not supposed to attract bugs as bad as regular light bulbs.
I have a pink porch light up for breast cancer awareness after recently losing someone close to me.... Green in November to honor our vets blue when a police officer is murdered to honor our men in blue.... Purple for domestic violence awareness
The different flashing lights on the Roomba vacuum mean refer to different status of the battery.
They were born with it
In some places a red porch light means drug dealer or prostitution.
increased intra ocular pressure
Blinking lights on a laptop are a way of sending signals to the users. All of the lights mean different things. For a listing of what the lights mean on your laptop please see the manual that came with the laptop.
It means you are home.
Which light?, there are a lot of different lights.
They mean different thing to different people, to me they are little stars shimmering in the dash to others they are warnings from the car
See related links. There isn't a universal standard.