diff --git a/packages/frontend/assets/room/object-thumbs/duct-rail-spot-lights.png b/packages/frontend/assets/room/object-thumbs/duct-rail-spot-lights.png
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diff --git a/packages/frontend/assets/room/objects/duct-rail-spot-lights/duct-rail-spot-lights.blend b/packages/frontend/assets/room/objects/duct-rail-spot-lights/duct-rail-spot-lights.blend
new file mode 100644
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diff --git a/packages/frontend/assets/room/objects/duct-rail-spot-lights/duct-rail-spot-lights.glb b/packages/frontend/assets/room/objects/duct-rail-spot-lights/duct-rail-spot-lights.glb
new file mode 100644
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diff --git a/packages/frontend/src/world/room/object-defs.ts b/packages/frontend/src/world/room/object-defs.ts
index 73f65a2f61..95004b945a 100644
--- a/packages/frontend/src/world/room/object-defs.ts
+++ b/packages/frontend/src/world/room/object-defs.ts
@@ -29,6 +29,7 @@ import { desk } from './objects/desk.js';
 import { desktopPc } from './objects/desktopPc.js';
 import { djMixer } from './objects/djMixer.js';
 import { djPlayer } from './objects/djPlayer.js';
+import { ductRailSpotLights } from './objects/ductRailSpotLights.js';
 import { ductTape } from './objects/ductTape.js';
 import { emptyBento } from './objects/emptyBento.js';
 import { energyDrink } from './objects/energyDrink.js';
@@ -125,6 +126,7 @@ export const OBJECT_DEFS = [
 	desktopPc,
 	djMixer,
 	djPlayer,
+	ductRailSpotLights,
 	ductTape,
 	emptyBento,
 	energyDrink,
diff --git a/packages/frontend/src/world/room/objects/ductRailSpotLights.ts b/packages/frontend/src/world/room/objects/ductRailSpotLights.ts
new file mode 100644
index 0000000000..cc7d43a046
--- /dev/null
+++ b/packages/frontend/src/world/room/objects/ductRailSpotLights.ts
@@ -0,0 +1,130 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import * as BABYLON from '@babylonjs/core';
+import { defineObject } from '../object.js';
+import { cm, remap, WORLD_SCALE } from '@/world/utility.js';
+
+export const ductRailSpotLights = defineObject({
+	id: 'ductRailSpotLights',
+	name: 'ductRailSpotLights',
+	options: {
+		schema: {
+			bodyColor: {
+				type: 'color',
+				label: 'Body color',
+			},
+			lightColor: {
+				type: 'color',
+				label: 'Light color',
+			},
+			lightBrightness: {
+				type: 'range',
+				label: 'Light brightness',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+			angleV: {
+				type: 'range',
+				label: 'Vertical angle',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+			angleH: {
+				type: 'range',
+				label: 'Horizontal angle',
+				min: 0,
+				max: 1,
+				step: 0.01,
+			},
+		},
+		default: {
+			bodyColor: [0.05, 0.05, 0.05],
+			lightColor: [1, 0.5, 0.2],
+			lightBrightness: 0.5,
+			angleV: 0.75,
+			angleH: 0.5,
+		},
+	},
+	placement: 'ceiling',
+	hasCollisions: false,
+	createInstance: ({ room, scene, options, model }) => {
+		const bodyMaterial = model.findMaterial('__X_BODY__');
+
+		const applyBodyColor = () => {
+			const [r, g, b] = options.bodyColor;
+			bodyMaterial.albedoColor = new BABYLON.Color3(r, g, b);
+		};
+
+		applyBodyColor();
+
+		const lamps = model.findMeshes('__X_LAMP__');
+		const lights: BABYLON.SpotLight[] = [];
+		for (const lamp of lamps) {
+			const light = new BABYLON.SpotLight('', new BABYLON.Vector3(cm(0), cm(0), 0), new BABYLON.Vector3(0, -1, 0), Math.PI / 1, 2, scene, room?.lightContainer != null);
+			light.parent = lamp;
+			light.radius = cm(5);
+			if (room?.lightContainer != null) room.lightContainer.addLight(light);
+			lights.push(light);
+		}
+
+		const applyLightColor = () => {
+			const [r, g, b] = options.lightColor;
+			for (const light of lights) {
+				light.diffuse = new BABYLON.Color3(r, g, b);
+			}
+			for (const lamp of lamps) {
+				const emissive = lamp.material as BABYLON.PBRMaterial;
+				emissive.emissiveColor = new BABYLON.Color3(r, g, b);
+			}
+		};
+
+		applyLightColor();
+
+		const applyLightBrightness = () => {
+			for (const light of lights) {
+				light.intensity = 1 * options.lightBrightness * WORLD_SCALE * WORLD_SCALE;
+				light.range = cm(200) * options.lightBrightness;
+			}
+			for (const lamp of lamps) {
+				const emissive = lamp.material as BABYLON.PBRMaterial;
+				emissive.emissiveIntensity = options.lightBrightness * 10;
+			}
+		};
+
+		applyLightBrightness();
+
+		const shades = model.findMeshes('__X_SHADE__');
+
+		const applyAngle = () => {
+			for (const shade of shades) {
+				shade.rotationQuaternion = null;
+				shade.rotation = new BABYLON.Vector3(0, 0, 0);
+				shade.addRotation(remap(options.angleV, 0, 1, Math.PI / 2, -Math.PI / 2), 0, 0);
+				shade.addRotation(0, 0, remap(options.angleH, 0, 1, -Math.PI / 2, Math.PI / 2));
+			}
+			model.updated();
+		};
+
+		applyAngle();
+
+		return {
+			onOptionsUpdated: ([k, v]) => {
+				switch (k) {
+					case 'bodyColor': applyBodyColor(); break;
+					case 'lightColor': applyLightColor(); break;
+					case 'lightBrightness': applyLightBrightness(); break;
+					case 'angleV':
+					case 'angleH':
+						applyAngle();
+						break;
+				}
+			},
+			interactions: {},
+		};
+	},
+});