R133
At a glance
- Sign code
- R133
- Type
- Regulatory
- Official meaning
- Drivers must switch on the vehicle's head lamps beyond this sign.
What the Switch headlamps on sign means
This blue command sign tells you to switch your headlamps on, usually before a tunnel or a stretch with poor visibility.
What you must do
Turn your headlights on before passing the sign and keep them on for the section it covers.
Know the mistake this sign turns on
Full access adds the confusion Switch headlamps on is most often mistaken for and the hint for the test, on this sign and every other one — plus practice questions and timed mock papers. The practice sample and the readiness test are free.
See the free practice testSources
- Road Traffic Signs chart, National Department of TransportThe official chart. Sign R133 was checked against it, artwork and meaning, before being published here.
- National Road Traffic Regulations, 2000 — Schedule 1Where the prescribed meaning of each road traffic sign is set out.
Last updated 2026-09-03.