Tail lights are essential for road safety. They ensure your vehicle is visible to other drivers at night and in bad weather, and they’re legally required—driving with a faulty tail light can result in fines.
This guide explains what tail lights are, the different types available, how they differ from brake lights, and key legal considerations.
What Is a Tail Light?
A tail light is a rear-facing light that comes on when you switch on your headlights. Its purpose is to help other drivers see your vehicle in low-visibility conditions such as rain, fog, or darkness. Tail lights improve safety by reducing the risk of collisions.
Tail Lights: Functions & Benefits
Tail lights maintain visibility and act as a communication tool. They show the outline of your vehicle and work alongside indicators and brake lights to signal slowing, stopping, and turning. Modern systems, such as fibre optic and LED tail lights, enhance clarity and response time, helping prevent accidents.
Types of Tail Lights
Halogen Tail Lights
Features: Filament bulb that glows when powered.
Pros: Affordable and easy to replace.
Cons: Not very bright and burns out quickly.
LED Tail Lights
Features: Bright, energy-efficient, long lifespan.
Pros: Uses less power and lasts longer.
Cons: Higher initial cost.
HID (Xenon) Tail Lights
Features: Gas-filled bulb producing intense light.
Pros: Very bright; excellent visibility.
Cons: Expensive and needs warm-up time.
Laser Tail Lights
Features: Extremely bright, premium technology.
Pros: High visibility and a modern look.
Cons: Very costly and not widely used.
Sequential Tail Lights
Features: Light up in a flowing pattern.
Pros: Stylish and makes signaling clearer.
Cons: More complex wiring and higher cost.
Tail Lights vs. Brake Lights
Tail lights turn on with your headlights and are dimmer, allowing drivers to see you in low light.
Brake lights activate only when you press the brake pedal and shine brighter to alert drivers that you’re slowing or stopping.
Legal Requirements
Tail lights, brake lights, and turn signals must meet safety regulations. Lights must remain clearly visible—typically from around 500 feet. Dark-tinted or smoked lights often reduce brightness and may be illegal. In the UK, working brake lights are mandatory, and faulty lights can result in warnings or citations.
Regularly checking your lights helps ensure compliance and keeps your vehicle road-safe.
For replacement bulbs or lighting advice, contact Bowers Automotive:
📞 01782 590700 | ✉️ enquiries@bowersautoparts.net