# The Road Vehicles Lighting Regulations 1989, Paragraph 10

Extent: E+W+S

Electrical connections–
(a) Every main-beam headlamp shall be so constructed that the light emitted therefrom–
(i) can be deflected at the will of the driver to become a dipped beam, or
(ii) can be extinguished by the operation of a device which at the same time either–
(A) causes the lamp to emit a dipped beam, or
(B) causes another lamp to emit a dipped beam.
(b) Where a matched pair of main-beam headlamps is fitted they shall be capable of being switched on and off simultaneously and not otherwise.
11 Tell-tale–
(a) Any vehicle not covered by sub-paragraph (b):
A circuit-closed tell-tale shall be fitted
(b) A motor vehicle first used before 1st April 1986:
No requirement

---
Source: https://www.legislation.gov.uk/uksi/1989/1796/schedule/5/paragraph/10 (the official version)
Page: https://openlegislation.uk/road-vehicles-lighting-regulations-1989/schedule-5/paragraph-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.