This is typically someone who installed LED lights in a car that was designed for incandescent most DRLs run at a lower voltage than when the actual headlights are turned on. So when you run lower voltage to run those daytime running lights when using an LED bulb instead of filament that wasn't meant to be dimmable they Flickr or flash.
Some fun ones here you guys can help me think of their purpose
Print spool
MAC address
System Time
IPV4 and IPV6
Air gap
Random Access Memory
OS Kernal
Memory Contoller
South bridge
North Bridge
Corruption
Device Manager
Encryption SALT
API Key
System Services
Device Drivers