# Electrics<no value>

{{< callout context="caution" title="IMPORTANT!" icon="outline/alert-triangle" >}}

Token Variables - along with the [Gauge API](../../gauge-api/) - have been deprecated in Microsoft Flight Simulator 2024 in favour of the new [Vars API](../../../vars-api/vars-api/) and [Event API](../../../event-api/event-api/), which work with the more extensive and supported [Simulation Variables](../../../../simvars/simulation-variables/) and [Key Events](../../../../key-events/key-events-index/).

{{< /callout >}}

This page lists the available **electrical** [Token Variables](../token-variables/) for use when creating gauges using {{< glossterm >}}wasm{{< /glossterm >}} / C++.


### Alternator

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| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="ALTERNATOR_BREAKER_PULLED"></a>`ALTERNATOR_BREAKER_PULLED` | `b` (BOOL) | Whether the alternator breaker has been pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="ALTERNATOR_CONNECTION_ON"></a>`ALTERNATOR_CONNECTION_ON` | `b` (BOOL) | Whether the alternator connection is on (TRUE, 1) or not (FALSE, 0). |
| <a id="GENERATOR_ALTERNATOR_1_BUS_AMPS"></a>`GENERATOR_ALTERNATOR_1_BUS_AMPS`<span></span><a id="GENERATOR_ALTERNATOR_2_BUS_AMPS"></a>`GENERATOR_ALTERNATOR_2_BUS_AMPS`<span></span><a id="GENERATOR_ALTERNATOR_3_BUS_AMPS"></a>`GENERATOR_ALTERNATOR_3_BUS_AMPS`<span></span><a id="GENERATOR_ALTERNATOR_4_BUS_AMPS"></a>`GENERATOR_ALTERNATOR_4_BUS_AMPS` | `n` (FLOAT64) | The engine 1/2/3/4 generator alternator bus amperage. |
| <a id="GENERATOR_ALTERNATOR_1_BUS_VOLTAGE"></a>`GENERATOR_ALTERNATOR_1_BUS_VOLTAGE`<span></span><a id="GENERATOR_ALTERNATOR_2_BUS_VOLTAGE"></a>`GENERATOR_ALTERNATOR_2_BUS_VOLTAGE`<span></span><a id="GENERATOR_ALTERNATOR_3_BUS_VOLTAGE"></a>`GENERATOR_ALTERNATOR_3_BUS_VOLTAGE`<span></span><a id="GENERATOR_ALTERNATOR_4_BUS_VOLTAGE"></a>`GENERATOR_ALTERNATOR_4_BUS_VOLTAGE` | `n` (FLOAT64) | The engine 1/2/3/4 generator alternator bus voltage. |
| <a id="MASTER_ALTERNATOR"></a>`MASTER_ALTERNATOR` | `b` (BOOL) | Whether the generator alternator is switched on (TRUE, 1) or not (FALSE, 0). |

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### APU

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| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="APU_BLEED_PRESSURE_RECEIVED_BY_ENGINE"></a>`APU_BLEED_PRESSURE_RECEIVED_BY_ENGINE` | `n` (FLOAT64) | The amount of pressure received by the engine form the {{< glossterm >}}apu{{< /glossterm >}}, in {{< glossterm >}}psi{{< /glossterm >}}. |
| <a id="APU_GENERATOR_SWITCH"></a>`APU_GENERATOR_SWITCH` | `b` (BOOL) | Whether the {{< glossterm >}}apu{{< /glossterm >}} is switched on (TRUE, 1) or not (FALSE, 0). |
| <a id="APU_GENERATOR_ACTIVE"></a>`APU_GENERATOR_ACTIVE` | `b` (BOOL) | Whether the {{< glossterm >}}apu{{< /glossterm >}} generator is switched on (TRUE, 1) or not (FALSE, 0). |
| <a id="APU_ON_FIRE_DETECTED"></a>`APU_ON_FIRE_DETECTED` | `b` (BOOL) | Whether the {{< glossterm >}}apu{{< /glossterm >}} is on fire (TRUE, 1) or not (FALSE, 0). |
| <a id="APU_PCT_RPM"></a>`APU_PCT_RPM` | `n` (FLOAT64) | The {{< glossterm >}}apu{{< /glossterm >}} {{< glossterm >}}rpm{{< /glossterm >}} expressed as a {{< glossterm >}}percent_over_100{{< /glossterm >}}. |
| <a id="APU_PCT_STARTER"></a>`APU_PCT_STARTER` | `n` (FLOAT64) | The auxiliary power unit starter, expressed as a {{< glossterm >}}percent_over_100{{< /glossterm >}}. |
| <a id="APU_SWITCH"></a>`APU_SWITCH` | `b` (BOOL) | Whether the {{< glossterm >}}apu{{< /glossterm >}} is switched on (TRUE, 1) or not (FALSE, 0). |
| <a id="APU_VOLTS"></a>`APU_VOLTS` | `n` (FLOAT64) | The {{< glossterm >}}apu{{< /glossterm >}} voltage. |

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### Batteries

{{< table-wrapper >}}

| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="BATTERY_BREAKER_PULLED"></a>`BATTERY_BREAKER_PULLED` | `b` (BOOL) | Whether the battery breaker has been pulled (TRUE, 1) or not (False, 0). |
| <a id="BATTERY_CONNECTION_ON"></a>`BATTERY_CONNECTION_ON` | `b` (BOOL) | Whether the battery connection is on (TRUE, 1) or not (False, 0). |
| <a id="BATTERY_ESTIMATED_CAPACITY_PCT"></a>`BATTERY_ESTIMATED_CAPACITY_PCT` | `n` (FLOAT64) | The battery capacity expressed as a {{< glossterm >}}percent_over_100{{< /glossterm >}}. |
| <a id="BATTERY_LOAD"></a>`BATTERY_LOAD` | `n` (FLOAT64) | The battery load in amps. |
| <a id="BATTERY_VOLTAGE"></a>`BATTERY_VOLTAGE` | `n` (FLOAT64) | The battery voltage, in volts. |
| <a id="MASTER_BATTERY"></a>`MASTER_BATTERY` | `b` (BOOL) | The master battery switch position where TRUE (1) is on and FALSE (0) is off. |

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### Breakers

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| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="BREAKER_ADF"></a>`BREAKER_ADF` | `b` (BOOL) | Whether the ADF breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_ALTFLD"></a>`BREAKER_ALTFLD` | `b` (BOOL) | Whether the Alt field breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_AUTOPILOT"></a>`BREAKER_AUTOPILOT` | `b` (BOOL) | Whether the autopilot breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_AVNBUS1"></a>`BREAKER_AVNBUS1`<span></span><a id="BREAKER_AVNBUS2"></a>`BREAKER_AVNBUS2` | `b` (BOOL) | Whether the aviation bus 1/2 breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_AVNFAN"></a>`BREAKER_AVNFAN` | `b` (BOOL) | Whether the aviation fan breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_FLAP"></a>`BREAKER_FLAP` | `b` (BOOL) | Whether the flap breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_GPS"></a>`BREAKER_GPS` | `b` (BOOL) | Whether the GPS breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_INST"></a>`BREAKER_INST` | `b` (BOOL) | Whether the INST breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_INSTLTS"></a>`BREAKER_INSTLTS` | `b` (BOOL) | Whether the INST LTS breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_LTS_PWR"></a>`BREAKER_LTS_PWR` | `b` (BOOL) | Whether the LTS power breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_NAVCOM1"></a>`BREAKER_NAVCOM1`<span></span><a id="BREAKER_NAVCOM2"></a>`BREAKER_NAVCOM2`<span></span><a id="BREAKER_NAVCOM3"></a>`BREAKER_NAVCOM3`<span></span><a id="BREAKER_NAVCOM4"></a>`BREAKER_NAVCOM4` | `b` (BOOL) | Whether the COM 1/2/3/4 breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_TURNCOORD"></a>`BREAKER_TURNCOORD` | `b` (BOOL) | Whether the turn coordinate breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_WARN"></a>`BREAKER_WARN` | `b` (BOOL) | Whether the warning breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BREAKER_XPNDR"></a>`BREAKER_XPNDR` | `b` (BOOL) | Whether the transponder breaker is pulled (TRUE, 1) or not (FALSE, 0). |

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### Buses

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| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="AVIONICS_BUS_AMPS"></a>`AVIONICS_BUS_AMPS` | `n` (FLOAT64) | The avionics bus current, in amps. |
| <a id="AVIONICS_BUS_VOLTAGE"></a>`AVIONICS_BUS_VOLTAGE` | `n` (FLOAT64) | The avionics bus voltage, in volts. |
| <a id="BATTERY_BUS_AMPS"></a>`BATTERY_BUS_AMPS` | `n` (FLOAT64) | The battery bus current, in amps. |
| <a id="BATTERY_BUS_VOLTAGE"></a>`BATTERY_BUS_VOLTAGE` | `n` (FLOAT64) | The battery bus voltage, in volts. |
| <a id="BUS_BREAKER_PULLED"></a>`BUS_BREAKER_PULLED` | `b` (BOOL) | Whether the bus breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="BUS_CONNECTION_ON"></a>`BUS_CONNECTION_ON` | `b` (BOOL) | Whether the bus connection is on (TRUE, 1) or not (False, 0). |
| <a id="BUS_LOOKUP_INDEX"></a>`BUS_LOOKUP_INDEX` | `n` (FLOAT64) | The bus lookup index value. |
| <a id="HOT_BATTERY_BUS_AMPS"></a>`HOT_BATTERY_BUS_AMPS` | `n` (FLOAT64) | The hot battery bus current, in amps. |
| <a id="HOT_BATTERY_BUS_VOLTAGE"></a>`HOT_BATTERY_BUS_VOLTAGE` | `n` (FLOAT64) | The hot battery bus voltage, in volts. |
| <a id="MAIN_BUS_AMPS"></a>`MAIN_BUS_AMPS` | `n` (FLOAT64) | The main bus current, in amps. |
| <a id="MAIN_BUS_VOLTAGE"></a>`MAIN_BUS_VOLTAGE` | `n` (FLOAT64) | The main bus voltage, in volts. |

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### Circuits

{{< table-wrapper >}}

| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="AUTO_BRAKES_CIRCUIT_ON"></a>`AUTO_BRAKES_CIRCUIT_ON` | `b` (BOOL) | Whether the auto brake circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="AUTO_FEATHER_CIRCUIT_ON"></a>`AUTO_FEATHER_CIRCUIT_ON` | `b` (BOOL) | Whether the auto feather circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="AUTOPILOT_CIRCUIT_ON"></a>`AUTOPILOT_CIRCUIT_ON` | `b` (BOOL) | Whether the autopilot circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="AVIONICS_CIRCUIT_ON"></a>`AVIONICS_CIRCUIT_ON` | `b` (BOOL) | Whether the avionics circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="CIRCUIT_BREAKER_PULLED"></a>`CIRCUIT_BREAKER_PULLED` | `b` (BOOL) | Whether the circuit breaker has been pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="CIRCUIT_COM_ON"></a>`CIRCUIT_COM_ON` | `b` (BOOL) | Whether the COM circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="CIRCUIT_CONNECTION_ON"></a>`CIRCUIT_CONNECTION_ON` | `b` (BOOL) | Whether there is a circuit connection (TRUE, 1) or not (FALSE, 0). |
| <a id="CIRCUIT_NAV_ON"></a>`CIRCUIT_NAV_ON` | `b` (BOOL) | Whether the NAV circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="CIRCUIT_NAVCOM1_ON"></a>`CIRCUIT_NAVCOM1_ON`<span></span><a id="CIRCUIT_NAVCOM2_ON"></a>`CIRCUIT_NAVCOM2_ON`<span></span><a id="CIRCUIT_NAVCOM3_ON"></a>`CIRCUIT_NAVCOM3_ON`<span></span><a id="CIRCUIT_NAVCOM4_ON"></a>`CIRCUIT_NAVCOM4_ON` | `b` (BOOL) | Whether the COM 1/2/3/4 circuits are on (TRUE, 1) or off (FALSE, 0). |
| <a id="CIRCUIT_ON"></a>`CIRCUIT_ON` | `b` (BOOL) | Whether the circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="CIRCUIT_SWITCH_ON"></a>`CIRCUIT_SWITCH_ON` | `b` (BOOL) | Whether the circuit switch is on (TRUE, 1) or off (FALSE, 0). |
| <a id="FLAP_MOTOR_CIRCUIT_ON"></a>`FLAP_MOTOR_CIRCUIT_ON` | `b` (BOOL) | Whether the flaps motor circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="GEAR_MOTOR_CIRCUIT_ON"></a>`GEAR_MOTOR_CIRCUIT_ON` | `b` (BOOL) | Whether the gear motor circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="GEAR_WARNING_CIRCUIT_ON"></a>`GEAR_WARNING_CIRCUIT_ON` | `b` (BOOL) | Whether the gear warning circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="GENERAL_PANEL_CIRCUIT_ON"></a>`GENERAL_PANEL_CIRCUIT_ON` | `b` (BOOL) | Whether the general panel circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="HYDRAULIC_PUMP_CIRCUIT_ON"></a>`HYDRAULIC_PUMP_CIRCUIT_ON` | `b` (BOOL) | Whether the hydraulic pump circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="MARKER_BEACON_CIRCUIT_ON"></a>`MARKER_BEACON_CIRCUIT_ON` | `b` (BOOL) | Whether the marker beacon circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="PITOT_HEAT_CIRCUIT_ON"></a>`PITOT_HEAT_CIRCUIT_ON` | `b` (BOOL) | Whether the pitot heat circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="PROP_SYNC_CIRCUIT_ON"></a>`PROP_SYNC_CIRCUIT_ON` | `b` (BOOL) | Whether the prop-sync circuit is on (TRUE, 1) or off (FALSE, 0). |
| <a id="STANDBY_VACUUM_CIRCUIT_ON"></a>`STANDBY_VACUUM_CIRCUIT_ON` | `b` (BOOL) | Whether the standby vacuum circuit is on (TRUE, 1) or off (FALSE, 0). |

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### External Power

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| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="EXTERNAL_POWER_AVAILABLE"></a>`EXTERNAL_POWER_AVAILABLE` | `b` (BOOL) | Whether external power is available (TRUE, 1) or not (FALSE, 0). |
| <a id="EXTERNAL_POWER_BREAKER_PULLED"></a>`EXTERNAL_POWER_BREAKER_PULLED` | `b` (BOOL) | Whether external power breaker is pulled (TRUE, 1) or not (FALSE, 0). |
| <a id="EXTERNAL_POWER_CONNECTION_ON"></a>`EXTERNAL_POWER_CONNECTION_ON` | `b` (BOOL) | Whether external power is connected (TRUE, 1) or not (FALSE, 0). |
| <a id="EXTERNAL_POWER_ON"></a>`EXTERNAL_POWER_ON` | `b` (BOOL) | Whether external power is on (TRUE, 1) or not (FALSE, 0). |

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### Lights

{{< table-wrapper >}}

| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="BEACON_LIGHTS"></a>`BEACON_LIGHTS` | `n` (FLOAT64) | Whether beacon lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="IS_ANY_INTERIOR_LIGHT_ON"></a>`IS_ANY_INTERIOR_LIGHT_ON` | `b` (BOOL) | Whether any interior lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LANDING_LIGHTS"></a>`LANDING_LIGHTS` | `n` (FLOAT64) | Whether the landing lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_BACKLIGHT_INTENSITY"></a>`LIGHT_BACKLIGHT_INTENSITY` | `n` (FLOAT64) | The aircraft backlight intensity, where 0 is off and 1 is full intensity. |
| <a id="LIGHT_BEACON_ON"></a>`LIGHT_BEACON_ON` | `b` (BOOL) | Whether the beacon lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_CABIN_ON"></a>`LIGHT_CABIN_ON` | `b` (BOOL) | Whether the cabin lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_GLARESHIELD"></a>`LIGHT_GLARESHIELD` | `n` (FLOAT64) | Whether the glareshield light is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_GYROLIGHT_INTENSITY"></a>`LIGHT_GYROLIGHT_INTENSITY` | `n` (FLOAT64) | The aircraft gyrolight intensity, where 0 is off and 1 is full intensity. |
| <a id="LIGHT_HEADLIGHT_INTENSITY"></a>`LIGHT_HEADLIGHT_INTENSITY` | `n` (FLOAT64) | The aircraft headlight intensity, where 0 is off and 1 is full intensity. |
| <a id="LIGHT_LANDING_ON"></a>`LIGHT_LANDING_ON` | `b` (BOOL) | Whether the landing lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_LOGO_ON"></a>`LIGHT_LOGO_ON` | `b` (BOOL) | Whether the logo lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_NAV_ON"></a>`LIGHT_NAV_ON` | `b` (BOOL) | Whether the NAV lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_PANEL_ON"></a>`LIGHT_PANEL_ON` | `b` (BOOL) | Whether the panel lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_PEDESTRAL"></a>`LIGHT_PEDESTRAL` | `n` (FLOAT64) | Whether the pedestral switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_POTENTIOMETER"></a>`LIGHT_POTENTIOMETER` | `n` (FLOAT64) | The light potentiometer position, expressed as a {{< glossterm >}}percent_over_100{{< /glossterm >}}. |
| <a id="LIGHT_STROBE_ON"></a>`LIGHT_STROBE_ON` | `b` (BOOL) | Whether the strobe lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_RECOGNITION_ON"></a>`LIGHT_RECOGNITION_ON` | `b` (BOOL) | Whether the recognition lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_TAXI_ON"></a>`LIGHT_TAXI_ON` | `b` (BOOL) | Whether the taxi lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LIGHT_WING_ON"></a>`LIGHT_WING_ON` | `b` (BOOL) | Whether the wing lights are on (TRUE, 1) or not (FALSE, 0). |
| <a id="LOGO_LIGHTS"></a>`LOGO_LIGHTS` | `n` (FLOAT64) | Whether the logo switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="NAV_LIGHTS"></a>`NAV_LIGHTS` | `n` (FLOAT64) | Whether the NAV switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="PANEL_LIGHTS"></a>`PANEL_LIGHTS` | `n` (FLOAT64) | Whether the panel switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="RECOGNITION_LIGHTS"></a>`RECOGNITION_LIGHTS` | `n` (FLOAT64) | Whether the recognition lights switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="STROBE_FLASH"></a>`STROBE_FLASH` | `b` (BOOL) | Whether the strobe lights are flashing (TRUE, 1) or not (FALSE, 0). |
| <a id="STROBE_LIGHTS"></a>`STROBE_LIGHTS` | `n` (FLOAT64) | Whether the strobe light switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="TAXI_LIGHTS"></a>`TAXI_LIGHTS` | `n` (FLOAT64) | Whether the taxi light switch is enabled (TRUE, 1) or not (FALSE, 0). |
| <a id="WING_LIGHTS"></a>`WING_LIGHTS` | `n` (FLOAT64) | Whether the wing light switch is enabled (TRUE, 1) or not (FALSE, 0). |

{{< /table-wrapper >}}


### General

{{< table-wrapper >}}

| Parameters | Universal Var Member | Description |
|---|---|---|
| <a id="CHARGING_AMPS"></a>`CHARGING_AMPS` | `n` (FLOAT64) | Charging system amps, where 1 amp = 65535. ***This is a legacy parameter and has been deprecated.*** |
| <a id="TOTAL_LOAD_AMPS"></a>`TOTAL_LOAD_AMPS` | `n` (FLOAT64) | The total load amperage, in amps. |

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