The brightest setting on a vehicle's headlamp system, designed to project light as far forward as possible. It is used on unlit rural roads where there is no oncoming traffic to dazzle. The term reflects the historic distinction between lights used in populated areas and those needed for open-country driving.
Heard on the job
Switch off the country beam when you see taillights ahead so you don't blind the driver in front of us.
Also heard as
- high beam
- main beam