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G25 light bulb (E26 base)
What size is an G25 light bulb? · Modern device · basis: Philips product datasheet (Philips 4G25/PER/822-827/E26/CL/G)
Also called: g25 bulb size, g25 dimensions, g25 light bulb dimensions, bombilla G25 medidas, lâmpada G25 dimensões, G25 Lampe Maße, ampoule G25 dimensions
Exact dimensions. True size, with no printing tolerance added.
- length
- 81 mm
- width
- 81 mm
- height
- 121 mm
Notes
- G25: Ø81 mm, 121 mm maximum overall length, E26 base — figures from the Philips 4G25/PER/822-827/E26/CL/G datasheet.
- The shape code gives the diameter in eighths of an inch (G25); 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).
G25 light bulb size chart
| dimension | value |
|---|---|
| diameter | 81 mm (3.19 in) |
| max overall length | 121 mm (4.76 in) |
| base | E26 |
| reference product | Philips 4G25/PER/822-827/E26/CL/G |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Philips | Philips 4G25/PER/822-827/E26/CL/G datasheet | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
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Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=g25-light-bulb

Fits with
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BR30 light bulb (E26 base)95.2×95.2×136.4 mm★ 1 fileFree
BR40 light bulb (E26 base)125.4×125.4×160.3 mm★ 1 fileFree
PAR30L light bulb (E26 base)96.8×96.8×119.1 mm★ 1 fileFree
PAR38 light bulb (E26 base)122.2×122.2×134.9 mm★ 1 fileFree
MR16 light bulb (GU5.3 base)51×51×55 mm★ 1 fileFree
GU10 PAR16 light bulb (GU10 base)50.0×50.0×54.0 mm★ 1 file








Questions
How big is an G25 bulb?
About Ø81 × 121 mm (reference product).