Signal Light,The Ultimate Guide

signal light

FILN is pleased to continue to provide you with the highest quality signal light indicators products. We always ensure our good reputation in the supply industry by supplying our customers with quality and useful LED light indicators and other light indicator related products.

The high-quality signal light indicator provided by FILN is made of high-quality PC material and can withstand high temperature up to 180 degrees Celsius. It has good impact resistance, thermal deformation resistance, good weather resistance and high hardness, which can ensure that your light indicator product is successfully obtained.

You can choose the type of light indicator you want. We, FILN, as your partner, are willing to guide you in the selection of products until your order is processed.

FILN is a reputable firm with highly skilled professionals designing and manufacturing ight indicator using cutting-edge approaches and methods.

As the No.1 signal light supplier in China, dealing with signal light, FILN also manufactures other products such as Automotive turn signal lights, signal lamps and POLOT LIGHT. We have various samples of these types. Of course, we welcome OEM and ODM. This means that if you need a specially designed signal light product, please feel free to contact us, we have a professional team at your service.

Indicator light accessories

What is A Signal Light?

The signal light indicator is a device used to communicate with other drivers. It provides information about the driver’s intention and helps others take appropriate action.

Normally, these signal light LEDs can be found on all vehicles that are driven on public roads and fall into two categories:

  • Automotive turn signal lights
  • Traffic lights

The first signal light car was introduced in the late 1800s, and they were used to indicate the direction of traffic. These days, they also show if a vehicle is turning left or right, has its hazard lights on, or indicates a right turn by flashing its right-hand indicator.

A big part of being a safe driver is being able to inform other motorists of your intentions. Signaling lights are both at the frontal and rear part of the vehicle and are sometimes also called “blinkers” and “signal light indicators.” Depending on the side you flicked on, your car will indicate whether you’re turning left or right.

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12.5mm signal indicator light

Automotive Turn Signal Lights

Drivers are expected to understand and use the signaling lights in cars. Despite some people’s rather lax response to using signaling or indicating lights, most states have laws requiring citizens to uphold this. Most people report that the last time they ever used their indication lights was during their driving test.

This endangers both themselves and other drivers and pedestrians on the streets. They’re specially engineered to assist drivers in moving smoothly on the road to signal to other motorists. Failure to communicate with other motorists often ends in accidents.

1. Braking lights

You’ll find these at the back of your car, and they’re important in alerting other motorists when you slow down or stop your car. These are only activated when you press your brakes, so you won’t have to stress about abusing them.

2. Daytime running lights

These are the automated lights at the back and front of your vehicle that come independently. In some cars, drivers can turn these off manually. They’re intended to increase your visibility to other motorists, though they can become distracting with oncoming traffic.

3. Fog lights

As the name suggests, fog lights are useful on foggy days when you need to break through the fog to shine and help other cars see you. They’re typically found near the headlights and only need to be accessed when normal lights are ineffective due to fog.

4. Hazards

Also found at both ends of a car, these lights are also called flashers and, when activated, help emit a flashing rhythm to alert drivers when there’s an emergency. This could be an issue with your car or a warning of impending danger ahead, and they’re not to be abused when illegally parking or stopping.

5. Headlights

These can be classified into low and high-beam lights and are important in helping drivers get a clear view of wide roads while also alerting others of the vehicle’s presence. While low beams produce only sufficient lighting without disturbing other motorists with blinding lights, high beams have more dazzling glares.

Ideally, high beams are designed to produce intense glares that illuminate larger spaces, usefully when driving on wide, open roads without other drivers. Make sure to turn them off when you come close to other cars.

6. Signal lights

To promptly alert other motorists, signal light LEDs are found on both ends of the vehicle and are also known as “blinkers.” They’re used to communicate to other drivers if you’ll be turning or switching lanes.

7. Taillights

Every car has red lights at the back that get illuminated as your headlights come on. These benefit drivers following you closely to better gauge the distance between the two of you.

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Induction cooker signal light

Traffic Lights

Traffic signals, or stop lights as they’re sometimes called, are electrical devices that help regulate traffic going in different directions at an intersection or junction. They visually indicate which side of motorists is allowed to move at any given time, letting them know when to go, slow down, or stop. Sometimes they also alert motorists when it is safe to turn.

Depending on the specific engineering, they can be manually controlled or rely on a timer that enables traffic flow in a specific direction for set periods in a repeated cycle. In more advanced models, these may be controlled by advanced digital control systems that constantly reconfigure the changing sequence based on specific timing (heavy traffic in the early morning).

Traffic engineers rely on these to reduce congestion and traffic jams, keeping drivers and pedestrians safe. At intersections, traffic lights appear in clusters of changing red, amber, and green lights, signaling to stop, proceed with caution, and go consecutively.

When used appropriately, they help fulfill several purposes:

  • Ensure a steady traffic flow: These help control traffic volumes and ensure orderly movement in the respective lanes.
  • Keep everyone safe: Traffic lights are designed for adherence by everyone, from drivers to cyclists and pedestrians, to keep everyone safe when interacting on the road, whether at cross junctions or crosswalks.
  • Reduce the frequency of accidents: There are fewer chances of accidents occurring with orderly movement on the road.


The traffic lights are made up of various important parts, including:

  • The body – is often constructed from rust-resistant aluminum or treated synthetic material.
  • Individual lens – with a tinted, clear cover.
  • Bulbs or lamps – constructed for durability and responsible for the different colors displayed.
  • A hood/ visor – separates the three different bulbs and helps direct the beam forward, forming the three-light signal stack.
  • Supporting arms – are made from durable material.
  • Controller – found in strong steel enclosures containing switches, timers, and relays.
10mm 48v led plastic signal indicator light lamp

Are signal lights LED on cars better?

A huge advantage of a signal light LED is how fast they come on – one-fifth of a second faster than other bulbs (incandescent). While that doesn’t seem significant, when moving fast, you need signals that respond fast to give other drivers enough time to respond and prevent an accident.

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Are traffic lights LED?

While not all existing traffic lights are made from LEDs, most places have started to replace them with these more efficient types. These are more efficient, durable, and brighter than traditional incandescent halogen lights used in traffic bulbs. Because of their small size, they’re often used in bunches.


Are LEDs safe?

Modern LED lights are not only innovative but safe for use. Because they are UV rays-free, they’re not a risk to your eyes, as seen in their use in various therapies. They’re also toxin-free and can be easily recycled, making them a green option.

Another impressive innovation is how they adjust to the time of day, making them the best solution for bedroom lights as they’re not too bright!


Signal lights are essential for every motorist’s safety. With consistent use, they prove very effective and help you communicate your intentions while on the road to other motorists, whether you want to switch lanes, turn, or pull over. While often neglected by some drivers, these are crucial in helping reduce accidents and road rage.

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