Main Beam (High Beam, Full Beam)
Main beam is the full headlight setting for maximum range on dark roads.
What is Main Beam (High Beam, Full Beam)?
It lights far ahead when there is no other traffic. It dazzles oncoming drivers and those ahead. A blue warning light shows when it is on. Flashing the main beam briefly is used as a warning signal in many countries, but its meaning is not universal. Adaptive systems can keep main beam on while shading other vehicles.
How it works
The beam points straight ahead without the cut-off of dipped beam.
Why it matters for your car
Dip the lights for oncoming traffic and when following other vehicles. Automatic high beam assists but the driver remains responsible.
Other terms
- AGM Battery
- Automatic Transmission
- Biodiesel (FAME)
- Bulkhead (Firewall)
- Car Sharing
- Comprehensive Car Insurance
- Crown Wheel And Pinion (Ring And Pinion)
- Cylinder Head
- Diode
- Drive Shaft (Half Shaft)
- Drive-by-wire (Electronic Throttle)
- Lead Loading (Body Solder)
- Piston
- Tow Eye (Towing Hook)
- Trailer Sway (Snaking)
- Underbody Protection
- Vehicle-to-Home (V2H)
- Washer Fluid (Screenwash)
- Water Spots
- Wheel Nut Torque