High Beam vs Low Beam
"You flash your high beam to signal someone — but it doesn't switch. Why?"
Dual-Filament Headlights
Bikes have dual-filament headlight bulbs. The high/low beam is controlled by a switch that toggles which filament is powered.
The low beam is designed to illuminate the road without blinding oncoming traffic. The high beam provides maximum visibility but should only be used when there's no oncoming traffic.

🎙️ Listen to Explanation
In this lesson, you'll learn:
- How dual-filament headlight bulbs work
- The difference between high and low beam
- When to use each beam type
- How to diagnose beam switch issues
🧩 Beam Switch Simulation
Toggle between high and low beam to see how it affects the light pattern and reach.
Current Beam: LOW
Low beam provides adequate visibility without blinding other road users.
Low beam activated. This is your default setting for night riding, especially with oncoming traffic.
The beam switch toggles between two separate filaments in the same bulb. If one filament burns out, the other may still work.
❓ Quiz
What does the high beam do?