Indicator Light

Indicator Lights are tube lights situated on electricity-powered and generator buildings that reflect the building's operating state. There are four total operating states they can display.
Power consumers or generators that lack Indicator Lights are:
* 
* 
* 
* s
Some buildings have non-standard ways of displaying their state:
* has numerous light fixtures that light up whenever the Sink is in operation
* and have an icon on both sides of the crane, which light up when the platform is properly connected to a Train Station
* has a charge indicator on its side
The has three Indicator Lights, the only building to have multiple. All lights display the same color.
== States ==
Color	Color 	Meaning 	Cause
 	Unlit 	No Connection	
* Building is not connected to a Power Line
* Production building has no recipe configured
 	Red 	No Power 	
* Building other than a power generator has no power supply
** The grid it is connected to is either has no operating power generators or is tripped
* Power generator is out of fuel or Water
 	Yellow 	Standby 	
* Production building is starving for resources by not having enough materials in its input slots
* Building has backed up resources in its output slots
* Building is manually set to standby mode by clicking the standby switch in its UI
* Pipeline Pump is powered but fluid is not flowing through; or is placed on a Pipeline containing a gas
** The Pump is not connected to a Pipeline on both ends
** There is no fluid to be moved or nowhere to move it to
** Head lift is exceeded
* Hyper Tube Entrance is not connected to a Hyper Tube
* Jump Pad has been used in the last ~2 seconds
* Truck Station doesn't have any vehicle docked under it
* Miner has depleted a SAM Ore resource node
 	Green 	Working 	
* The building is operational, such as by crafting, extracting, producing power, or otherwise executing its function
 	White/Blue	Overclocked 	
* Same as the green state, but the building has a Power Shard inserted (it does not need to be actually operating overclocked)
=== Notes ===
* Production buildings refers to buildings with configurable recipes
* The "overclocked" state appears white on high gamma values and light blue on low gamma values
== Trivia ==
* Indicator Lights were not named until the 0.5.0.2 patch notes, where they were named "Building Status Indicator Lights". 0.5.0.10 patch notes refer to them as "Status Indicator".
* There is an "indigo blue" state which only appeared on unfinished or improperly implemented buildings.
== Gallery ==
File:Indicator Light Constructors.jpg|Constructors with the red, yellow, green and white/blue Indicator Lights
== History ==
* Patch 0.7.0.0?: Introduced unlit state for missing Power Line/no recipe configuration (not in patch notes)
* Patch 0.5.0.10: Fixed Fuel Generator Status Indicator being offset
* Patch 0.5.0.2: Fixed Building Status Indicator Lights not working
* Patch 0.5.0.0: Indicator Lights no longer work, appearing to be turned off (bug)
* Patch 0.3.4.0: Red and yellow states no longer blink
Category:Gameplay mechanics
Category:Buildings
ru:Индикатор состояния
fr:Voyant de fonctionnement