# MR16 light bulb (GU5.3 base)

> What size is an MR16 light bulb?

- Category: Everyday objects › Light bulbs
- Kind: Modern device
- Basis: Philips product datasheet (Philips 8.5MRX16/LED/F25 2700 DIM AF)
- Page: https://xemstudio.com/objects/mr16-light-bulb/ · JSON: https://xemstudio.com/api/geometry?object=mr16-light-bulb · Plain text: https://xemstudio.com/objects/mr16-light-bulb/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); linked files under their publishers' licenses
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 51 | 51 | 55 |

**Exact dimensions.** True size, with no printing tolerance added.

## 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).

## Sizes

| dimension | value |
|---|---|
| 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 |

## Where the files are

- Philips: [Philips 8.5MRX16/LED/F25 2700 DIM AF datasheet](https://www.assets.lighting.philips.com/is/content/PhilipsLighting/fp929001149804-pss-en_us) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/mr16-light-bulb/index.json

- mr16-light-bulb-envelope: [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) — Envelope Ø51 × 55 mm

## Questions

**How big is an MR16 bulb?**

About Ø51 × 55 mm (reference product).

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