PAR38 light bulb (E26 base) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/par38-light-bulb/  (CC BY 4.0)
Basis: Philips product datasheet (Philips 14PAR38/LED/840/F40/DIM/ULW)
Catalog version: 2026-10-20

Overall (mm): length 122.2, width 122.2, height 134.9
- PAR38: Ø122.2 mm, 134.9 mm maximum overall length, E26 base — figures from the Philips 14PAR38/LED/840/F40/DIM/ULW datasheet.
- The shape code gives the diameter in eighths of an inch (PAR38); 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).

dimension  value
diameter  122.2 mm (4.81 in)
max overall length  134.9 mm (5.31 in)
base  E26
reference product  Philips 14PAR38/LED/840/F40/DIM/ULW

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Philips: Philips 14PAR38/LED/840/F40/DIM/ULW datasheet — web — Publisher's page; dimensions are facts — https://www.assets.lighting.philips.com/is/content/PhilipsLighting/fp929001319104-pss-en_us

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/par38-light-bulb/index.json
API: https://xemstudio.com/api/geometry?object=par38-light-bulb