# Light source and lamp not compatible. — Vehicle inspection defect categories: MOT major, minor and dangerous verdicts For Light source and lamp not compatible., defect is Light source and lamp not compatible; category is Major; inspection item number is 4.1.4; defect reference is (c); inspection item is Compliance with requirements 1 , recorded from its source on 2026-08-06. - **Defect:** Light source and lamp not compatible. _(verified: appears in the quote below)_ - **Category:** Major - **Inspection item number:** 4.1.4 - **Defect reference:** (c) _(verified: appears in the quote below)_ - **Inspection item:** Compliance with requirements 1 . - **Authority:** EU Directive 2014/45/EU Annex I _(our reading, not quoted from the source)_ ## What the source says > (c) | Light source and lamp not compatible. | | | X | ## Source - https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32014L0045 Last verified: 2026-08-06. Review by: 2027-02-02. Part of [Vehicle inspection defect categories: MOT major, minor and dangerous verdicts](https://referencesource.org/vehicle-inspection-defect-categories/).