{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "mr16-light-bulb",
 "name": "MR16 light bulb (GU5.3 base)",
 "kind": "modern",
 "category": "Everyday objects",
 "group": "Light bulbs",
 "year": null,
 "question": "What size is an MR16 light bulb?",
 "tags": [
  "light bulb",
  "lamp",
  "mr16"
 ],
 "aliases": [
  "mr16 bulb size",
  "mr16 dimensions",
  "mr16 light bulb dimensions"
 ],
 "overall_mm": {
  "length": 51,
  "width": 51,
  "height": 55
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/mr16-light-bulb/",
 "sheet_txt": "https://xemstudio.com/objects/mr16-light-bulb/sheet.txt",
 "sheet": {
  "basis": "Philips product datasheet (Philips 8.5MRX16/LED/F25 2700 DIM AF)",
  "overall_mm": {
   "length": 51,
   "width": 51,
   "height": 55
  },
  "notes": [
   "MR16: Ø51 mm, 55 mm maximum overall length, GU5.3 base — figures from the Philips 8.5MRX16/LED/F25 2700 DIM AF datasheet.",
   "The shape code gives the diameter in eighths of an inch (MR16); the ANSI C78 envelope limits are paywalled, so a typical current product is quoted. Other brands differ by a few mm in length.",
   "The file is a cylinder envelope Ø × MOL (the bulb fits inside it)."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "diameter",
     "51 mm (2.01 in)"
    ],
    [
     "max overall length",
     "55 mm (2.17 in)"
    ],
    [
     "base",
     "GU5.3"
    ],
    [
     "reference product",
     "Philips 8.5MRX16/LED/F25 2700 DIM AF"
    ]
   ]
  }
 },
 "sheet_text": "MR16 light bulb (GU5.3 base) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/mr16-light-bulb/  (CC BY 4.0)\nBasis: Philips product datasheet (Philips 8.5MRX16/LED/F25 2700 DIM AF)\nCatalog version: 2026-10-20\n\nOverall (mm): length 51, width 51, height 55\n- MR16: Ø51 mm, 55 mm maximum overall length, GU5.3 base — figures from the Philips 8.5MRX16/LED/F25 2700 DIM AF datasheet.\n- The shape code gives the diameter in eighths of an inch (MR16); the ANSI C78 envelope limits are paywalled, so a typical current product is quoted. Other brands differ by a few mm in length.\n- The file is a cylinder envelope Ø × MOL (the bulb fits inside it).\n\ndimension  value\ndiameter  51 mm (2.01 in)\nmax overall length  55 mm (2.17 in)\nbase  GU5.3\nreference product  Philips 8.5MRX16/LED/F25 2700 DIM AF\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Philips: Philips 8.5MRX16/LED/F25 2700 DIM AF datasheet — web — Publisher's page; dimensions are facts — https://www.assets.lighting.philips.com/is/content/PhilipsLighting/fp929001149804-pss-en_us\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/mr16-light-bulb/index.json\nAPI: https://xemstudio.com/api/geometry?object=mr16-light-bulb\n",
 "sources": [
  {
   "publisher": "Philips",
   "title": "Philips 8.5MRX16/LED/F25 2700 DIM AF datasheet",
   "url": "https://www.assets.lighting.philips.com/is/content/PhilipsLighting/fp929001149804-pss-en_us",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "a19-light-bulb",
  "a21-light-bulb",
  "br30-light-bulb",
  "br40-light-bulb",
  "par30l-light-bulb",
  "par38-light-bulb",
  "g25-light-bulb",
  "gu10-par16-light-bulb"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "How big is an MR16 bulb?",
   "a": "About Ø51 × 55 mm (reference product)."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "mr16-light-bulb-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/mr16-light-bulb/mr16-light-bulb-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/mr16-light-bulb/mr16-light-bulb-envelope.stl",
   "note": "Envelope Ø51 × 55 mm"
  }
 ],
 "markdown": "https://xemstudio.com/objects/mr16-light-bulb/index.md"
}