Which statement describes the recommended Public Safety Cyclists lighting specification?

• A. 42 lumens at ten feet
• B. 28 lumens at ten feet
• C. 84 lumens at ten feet
• D. 60 lumens at ten feet

Answer: (C)

In public safety cycling, the lighting standard focuses on how bright your front light appears at a close, practical distance so you’re clearly seen by others in real-world traffic. The idea is to ensure enough conspicuity without causing unnecessary glare or wasting battery life.

84 lumens at ten feet is chosen because it provides clear visibility to pedestrians and vehicle operators at a near distance typical of urban interactions—like approaching intersections, passing pedestrians, or lane changes—while keeping the light from being uncomfortably bright up close. This level strikes a balance between being easily noticed and staying efficient in power use.

Lower options would be dimmer and less reliable for being seen in daytime or dusk conditions, which reduces your safety margin in busy public safety environments. Higher brightness isn’t necessary here and can waste battery or create glare in close quarters.