diff --git a/addons/houseLightSwitch/$PBOPREFIX$ b/addons/houseLightSwitch/$PBOPREFIX$
new file mode 100644
index 0000000..cbb9216
--- /dev/null
+++ b/addons/houseLightSwitch/$PBOPREFIX$
@@ -0,0 +1 @@
+x\grad\addons\houseLightSwitch
diff --git a/addons/houseLightSwitch/CfgEventHandlers.hpp b/addons/houseLightSwitch/CfgEventHandlers.hpp
new file mode 100644
index 0000000..0d3301d
--- /dev/null
+++ b/addons/houseLightSwitch/CfgEventHandlers.hpp
@@ -0,0 +1,17 @@
+class Extended_PreStart_EventHandlers {
+    class ADDON {
+        init = QUOTE(call COMPILE_FILE(XEH_preStart));
+    };
+};
+
+class Extended_PreInit_EventHandlers {
+    class ADDON {
+        init = QUOTE(call COMPILE_FILE(XEH_preInit));
+    };
+};
+
+class Extended_PostInit_EventHandlers {
+    class ADDON {
+        init = QUOTE(call COMPILE_FILE(XEH_postInit));
+    };
+};
diff --git a/addons/houseLightSwitch/CfgVehicles.hpp b/addons/houseLightSwitch/CfgVehicles.hpp
new file mode 100644
index 0000000..b15bcec
--- /dev/null
+++ b/addons/houseLightSwitch/CfgVehicles.hpp
@@ -0,0 +1,16 @@
+class CfgVehicles {
+	class Man;
+	class CAManBase: Man {
+		class ACE_SelfActions {
+			class ACE_Equipment {
+				class GRAD_houseLightSwitch_fusebox {
+					displayName = "Locate fuse box";
+					condition = QUOTE(call FUNC(condition_fusebox));
+					exceptions[] = {};
+					statement = QUOTE(call FUNC(action_fusebox));
+					icon = "\x\grad\addons\houseLightSwitch\ui\bulb-question.paa";
+				};
+			};
+		};
+	};
+};
diff --git a/addons/houseLightSwitch/README.md b/addons/houseLightSwitch/README.md
new file mode 100644
index 0000000..2f4fbc6
--- /dev/null
+++ b/addons/houseLightSwitch/README.md
@@ -0,0 +1,9 @@
+### houseLightSwitch
+
+ACE self interact menu to switch all lights in a house. Requires player to be in and reasonably close to the house center.
+
+To test, move into a house that has lights - for example "Land_House_C_3_EP1" or "Land_House_C_9_EP1". Terrains containing these buildings are Zargabad or Uzbin_Valley . Be close to the center of the house. Self interact should now contain a "switch house lights off" entry.
+
+#### Maintainer(s)
+
+* Fusselwurm
diff --git a/addons/houseLightSwitch/XEH_PREP.hpp b/addons/houseLightSwitch/XEH_PREP.hpp
new file mode 100644
index 0000000..eda0c71
--- /dev/null
+++ b/addons/houseLightSwitch/XEH_PREP.hpp
@@ -0,0 +1,9 @@
+PREP(action_fusebox);
+PREP(createFuseboxActions);
+PREP(condition);
+PREP(condition_fusebox);
+PREP(condition_off);
+PREP(condition_on);
+PREP(ensureFuseboxHelper);
+PREP(fadeFuseboxHelper);
+PREP(server_setBuildingMainSwitch);
diff --git a/addons/houseLightSwitch/XEH_postInit.sqf b/addons/houseLightSwitch/XEH_postInit.sqf
new file mode 100644
index 0000000..24075fd
--- /dev/null
+++ b/addons/houseLightSwitch/XEH_postInit.sqf
@@ -0,0 +1,5 @@
+#include "script_component.hpp"
+
+if (isServer) then {
+    [QGVAR(setBuildingMainSwitch),FUNC(server_setBuildingMainSwitch)] call CBA_fnc_addEventHandler;
+};
diff --git a/addons/houseLightSwitch/XEH_preInit.sqf b/addons/houseLightSwitch/XEH_preInit.sqf
new file mode 100644
index 0000000..b47cf66
--- /dev/null
+++ b/addons/houseLightSwitch/XEH_preInit.sqf
@@ -0,0 +1,9 @@
+#include "script_component.hpp"
+
+ADDON = false;
+
+PREP_RECOMPILE_START;
+#include "XEH_PREP.hpp"
+PREP_RECOMPILE_END;
+
+ADDON = true;
diff --git a/addons/houseLightSwitch/XEH_preStart.sqf b/addons/houseLightSwitch/XEH_preStart.sqf
new file mode 100644
index 0000000..0228885
--- /dev/null
+++ b/addons/houseLightSwitch/XEH_preStart.sqf
@@ -0,0 +1,3 @@
+#include "script_component.hpp"
+
+#include "XEH_PREP.hpp"
diff --git a/addons/houseLightSwitch/config.cpp b/addons/houseLightSwitch/config.cpp
new file mode 100644
index 0000000..92740c1
--- /dev/null
+++ b/addons/houseLightSwitch/config.cpp
@@ -0,0 +1,18 @@
+#include "script_component.hpp"
+
+class CfgPatches {
+    class ADDON {
+        author = "$STR_grad_Author";
+        name = QUOTE(ADDON);
+        url = "$STR_grad_URL";
+        requiredVersion = 1.0;
+        requiredAddons[] = {"grad_main", "ace_interact_menu"};
+        units[] = {};
+        weapons[] = {};
+        VERSION_CONFIG;
+        authors[] = {"Fusselwurm"};
+    };
+};
+
+#include "CfgVehicles.hpp"
+#include "CfgEventHandlers.hpp"
diff --git a/addons/houseLightSwitch/functions/fnc_action_fusebox.sqf b/addons/houseLightSwitch/functions/fnc_action_fusebox.sqf
new file mode 100644
index 0000000..231d6d3
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_action_fusebox.sqf
@@ -0,0 +1,23 @@
+#include "script_component.hpp"
+
+private _building = GVAR(house);
+private _hasFuseboxActions = _building getVariable [QGVAR(hasFuseboxActions), false];
+
+if (_hasFuseboxActions) exitWith {
+	[_building] call FUNC(ensureFuseboxHelper);
+};
+
+[
+	ACE_player distance _building, 
+	[_building],
+	{
+		params ["_args"];
+		_args params ["_building"];
+		assert(!isNull(_building));
+		hint "Found the fuse box. Look for a bright helper object!";
+		[_building] call FUNC(ensureFuseboxHelper);
+		[_building] call FUNC(createFuseboxActions);
+	}, 
+	{hint "Failure"}, 
+	"Searching fuse box..."
+] call ace_common_fnc_progressBar;
diff --git a/addons/houseLightSwitch/functions/fnc_condition.sqf b/addons/houseLightSwitch/functions/fnc_condition.sqf
new file mode 100644
index 0000000..c9f0c7a
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_condition.sqf
@@ -0,0 +1,13 @@
+#include "script_component.hpp"
+
+private _cursorTarget = cursorTarget;
+
+private _isUnderSomething = lineIntersectsObjs [getposASL ace_player, getposASL ace_player vectorAdd [0, 0, 20]] isNotEqualTo [];
+private _pointsAtHouse = _cursorTarget isKindOf "House" || {_cursorTarget isKindOf "Building"};
+
+if (_pointsAtHouse && {_isUnderSomething}) then {
+	GVAR(house) = _cursorTarget;
+	true
+} else {
+	false
+};
diff --git a/addons/houseLightSwitch/functions/fnc_condition_fusebox.sqf b/addons/houseLightSwitch/functions/fnc_condition_fusebox.sqf
new file mode 100644
index 0000000..11bb8de
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_condition_fusebox.sqf
@@ -0,0 +1,3 @@
+#include "script_component.hpp"
+
+call FUNC(condition)
diff --git a/addons/houseLightSwitch/functions/fnc_condition_off.sqf b/addons/houseLightSwitch/functions/fnc_condition_off.sqf
new file mode 100644
index 0000000..8a3f51d
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_condition_off.sqf
@@ -0,0 +1,3 @@
+#include "script_component.hpp"
+
+[] call FUNC(condition) && {GVAR(house) getVariable [QGVAR(mainSwitchState), true] isEqualTo true};
diff --git a/addons/houseLightSwitch/functions/fnc_condition_on.sqf b/addons/houseLightSwitch/functions/fnc_condition_on.sqf
new file mode 100644
index 0000000..c500864
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_condition_on.sqf
@@ -0,0 +1,3 @@
+#include "script_component.hpp"
+
+[] call FUNC(condition) && {GVAR(house) getVariable [QGVAR(mainSwitchState), true] isEqualTo false};
diff --git a/addons/houseLightSwitch/functions/fnc_createFuseboxActions.sqf b/addons/houseLightSwitch/functions/fnc_createFuseboxActions.sqf
new file mode 100644
index 0000000..77f9171
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_createFuseboxActions.sqf
@@ -0,0 +1,44 @@
+#include "script_component.hpp"
+
+params [
+	["_building", objNull, [objNull]]
+];
+
+assert(!(isNull _building));
+
+if (_building getVariable [QGVAR(hasFuseboxActions), false]) exitWith {
+	WARNING_1("fusebox actions already added for %1", _building);
+};
+_building setVariable [QGVAR(hasFuseboxActions), true];
+
+private _onAction = [
+	QGVAR(on),
+	"Turn on house lights",
+	"x\grad\addons\houseLightSwitch\ui\bulb-on.paa", 
+	{
+		params ["", "", "_args"];
+		_args params [["_building", objNull, [objNull]]];
+		[QGVAR(setBuildingMainSwitch), [GVAR(house), true]] call CBA_fnc_serverEvent;
+		[_building] call FUNC(fadeFuseboxHelper);
+	}, 
+	{call FUNC(condition_on)}, 
+	{[]}, 
+	[_building]
+] call ace_interact_menu_fnc_createAction;
+[_building, 0, [], _onAction] call ace_interact_menu_fnc_addActionToObject;
+
+private _offAction = [
+	QGVAR(off),
+	"Turn off house lights",
+	"\x\grad\addons\houseLightSwitch\ui\bulb-off.paa", 
+	{
+		params ["", "", "_args"];
+		_args params [["_building", objNull, [objNull]]];
+		[QGVAR(setBuildingMainSwitch), [GVAR(house), false]] call CBA_fnc_serverEvent;
+		[_building] call FUNC(fadeFuseboxHelper);
+	}, 
+	{call FUNC(condition_off)}, 
+	{[]}, 
+	[_building]
+] call ace_interact_menu_fnc_createAction;
+[_building, 0, [], _offAction] call ace_interact_menu_fnc_addActionToObject;
diff --git a/addons/houseLightSwitch/functions/fnc_ensureFuseboxHelper.sqf b/addons/houseLightSwitch/functions/fnc_ensureFuseboxHelper.sqf
new file mode 100644
index 0000000..46c1a86
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_ensureFuseboxHelper.sqf
@@ -0,0 +1,21 @@
+#include "script_component.hpp"
+
+params [
+	["_building", objNull, [objNull]]
+];
+assert(!(isNull _building));
+	
+private _helper = _building getVariable [QGVAR(fuseboxHelper), objNull];
+if (_helper isNotEqualTo objNull) exitWith {
+	TRACE_1("helper for %1 exists already!", _building);
+};
+
+private _helperPos = _building modelToWorld [0, 0, 0];
+TRACE_2("creating helper for building %1 at %2", _building, _helperPos);
+
+// NOTE: cannot use createSimpleObject, as these cannot hold ACE actions
+// NOTE: createVehicleLocal will avoid collisions! hence setpos later
+_helper = "Sign_Sphere25cm_F" createVehicleLocal [0, 0, 0];  
+_helper setPos _helperPos; 
+
+_building setVariable [QGVAR(fuseboxHelper), _helper];
diff --git a/addons/houseLightSwitch/functions/fnc_fadeFuseboxHelper.sqf b/addons/houseLightSwitch/functions/fnc_fadeFuseboxHelper.sqf
new file mode 100644
index 0000000..4cc9f7a
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_fadeFuseboxHelper.sqf
@@ -0,0 +1,42 @@
+#include "script_component.hpp"
+
+params [
+	["_building", objNull, [objNull]]
+];
+assert(!(isNull _building));
+
+private _helper = _building getVariable [QGVAR(fuseboxHelper), objNull];
+private _existingOpacity = _helper getVariable [QGVAR(opaqueness), -1];
+if (_existingOpacity != -1) exitWith {
+	WARNING_1("helper already has non-default opacity %1 , will not add another handler", _existingOpacity);
+};
+_helper setVariable [QGVAR(opaqueness), 1];
+
+[
+	{
+		params [
+			["_args", [], [[]]],
+			["_handle", 0, [0]]
+		];
+		_args params [
+			["_building", objNull, [objNull]]
+		];
+		assert(!(isNull _building));
+		private _helper = _building getVariable [QGVAR(fuseboxHelper), objNull];
+		private _opaqueness = _helper getVariable [QGVAR(opaqueness), 0];
+		_helper setVariable [QGVAR(opaqueness), _opaqueness - 0.05];
+		if (isNull _helper) exitWith {
+			[_handle] call CBA_fnc_removePerFrameHandler;
+			_building setVariable [QGVAR(fuseboxHelper), nil];
+			WARNING_1("null helper in loop for building %1!", _building);
+		};
+		if (_opaqueness <= 0) exitWith {
+			[_handle] call CBA_fnc_removePerFrameHandler;
+			_building setVariable [QGVAR(fuseboxHelper), nil];
+			deleteVehicle _helper;
+		};
+		_helper setObjectTexture [0, format ["#(argb,8,8,3)color(1,0.6,0.1,%1,ca)", _opaqueness]];
+	}, 
+	0.1, 
+	[_building]
+] call CBA_fnc_addPerFrameHandler;
diff --git a/addons/houseLightSwitch/functions/fnc_server_setBuildingMainSwitch.sqf b/addons/houseLightSwitch/functions/fnc_server_setBuildingMainSwitch.sqf
new file mode 100644
index 0000000..c9f69ca
--- /dev/null
+++ b/addons/houseLightSwitch/functions/fnc_server_setBuildingMainSwitch.sqf
@@ -0,0 +1,35 @@
+#include "script_component.hpp"
+// assumption: any damage to a light source should be enough to kill it. 
+// therefore, I can use a magic damage (< 1) to mark as light as "switched off" as opposed to "destroyed"
+#define MAGIC_DAMAGE_LIGHT_OFF 0.9
+
+params [
+	["_building", objNull, [objNull]],
+	["_newState", false, [false]]
+];
+
+assert(isServer); // terrain objects are local *everywhere*. therefore, force server to have a single point of truth.
+
+private _isOn = _building getVariable [QGVAR(mainSwitchState), true];
+if (_newState isEqualTo _isOn) exitWith {
+	TRACE_2("someone tried to switch lights on building %1 to pre-existing state %2", _building, _newState);
+};
+_building setVariable [QGVAR(mainSwitchState), _newState, true];
+
+private _existingDmg = getAllHitPointsDamage _building;
+
+{ 	
+	if (_x find "#" == 0) then { // assume indices starting with "#" to be lights
+		private _prevLightDmg = (_existingDmg#2#_forEachIndex);
+		// using setHitIndex over setHitPointDamage as there are buildings - looking at you, Land_House_C_2_EP1 - where hitpointnames are not unique
+		_building setHitIndex [
+			_forEachIndex, 
+			if (_newState) then {
+				if (_prevLightDmg isEqualTo MAGIC_DAMAGE_LIGHT_OFF) then {0} else {_prevLightDmg}
+			} else {
+				_prevLightDmg max MAGIC_DAMAGE_LIGHT_OFF
+			}, 
+			false
+		];	
+	};
+} forEach _existingDmg#0;
diff --git a/addons/houseLightSwitch/functions/script_component.hpp b/addons/houseLightSwitch/functions/script_component.hpp
new file mode 100644
index 0000000..fcf9da9
--- /dev/null
+++ b/addons/houseLightSwitch/functions/script_component.hpp
@@ -0,0 +1 @@
+#include "..\script_component.hpp"
diff --git a/addons/houseLightSwitch/script_component.hpp b/addons/houseLightSwitch/script_component.hpp
new file mode 100644
index 0000000..002916c
--- /dev/null
+++ b/addons/houseLightSwitch/script_component.hpp
@@ -0,0 +1,4 @@
+#define COMPONENT houseLightSwitch
+
+#include "\x\grad\addons\main\script_mod.hpp"
+#include "\x\grad\addons\main\script_macros.hpp"
diff --git a/addons/houseLightSwitch/ui/bulb-off.paa b/addons/houseLightSwitch/ui/bulb-off.paa
new file mode 100644
index 0000000..407331c
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diff --git a/addons/houseLightSwitch/ui/bulb-on.paa b/addons/houseLightSwitch/ui/bulb-on.paa
new file mode 100644
index 0000000..09e35ab
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diff --git a/addons/houseLightSwitch/ui/bulb-question.paa b/addons/houseLightSwitch/ui/bulb-question.paa
new file mode 100644
index 0000000..415e87e
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