When it comes to automotive troubleshooting, a test light is an essential tool. There are many different types of automotive test lights available on the market, so it can be difficult to decide which one is right for you. In this blog post, we will discuss the best automotive test lights and what you should look out for when shopping for one. We will also describe exactly what an automotive test light is and how they work. Finally, we will give some tips on how to use an automotive test light effectively for those of you who may not be quite as experienced.

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What Is An Automotive Test Light?

An automotive test light is a simple yet essential tool that every car owner should have in their arsenal. As the name suggests, test lights are used to help diagnose electrical issues in your vehicle. They work by providing a visual indication of whether or not there is power flowing through a certain circuit. Test lights can come in handy in a variety of situations, such as when you’re trying to figure out why your headlights aren’t working or why your car won’t start.

There are two main types of test lights: incandescent and LED. Incandescent test lights use a filament that glows when it comes in contact with an electrical current. LED test lights, on the other hand, use a light-emitting diode that produces a bright light when activated. Both types of test lights are effective, but many mechanics prefer to use LED test lights because they tend to be more durable and easier to see in direct sunlight.

LED Vs Incandescent – Which Is Better?

There are pros and cons to both types of test lights. Incandescent test lights are cheaper and easier to find, but they tend to be less reliable. LED test lights, on the other hand, are more expensive but they offer a number of advantages over their incandescent counterparts. For one, LED test lights are much more durable and can withstand being dropped or knocked around. They also provide a brighter light, which makes them easier to use in dark areas.

Ultimately, it comes down to personal preference as to which type of test light you prefer.

How Do Automotive Test Lights Work?

Test lights work by completing the circuit between the ground and the power source. This allows current to flow through the tester and into the bulb. If the bulb lights up, then you know that there is power flowing through the circuit. If the bulb doesn’t light up, then you know there is an issue with the circuit. Automotive test lights are a quick and easy way to diagnose electrical issues without having to resort to more complicated methods.

Why Do I Need An Automotive Test Light?

As we mentioned before, test lights can be a helpful diagnostic tool when trying to figure out why an electrical component in your vehicle isn’t working. However, they can also be used for other purposes, such as testing fuses or checking for short circuits. No matter what your purpose is for using one, an automotive test light can save you a lot of time and hassle.

What To Consider When Choosing An Automotive Test Light

When considering what automotive test light to buy, there are a few key factors you should take into account. The length of the cable is important to ensure that you can reach all areas of your car easily. The LED indicator and its brightness is also crucial so that you can see clearly what the status of your car’s electrical system is.

Safety features such as clip size and operating voltage range are also important considerations. By taking all of these factors into account, you can be sure to choose the right automotive test light for your needs.

Cable Length

The length of the cable is important to consider because you need to be able to reach all areas of your car easily. A longer cable means that you won’t have to move the light around as much, which can save you time and effort.

LED Indicator and Brightness

 The LED indicator is important so that you can see clearly what the status of your car’s electrical system is. A brighter LED means that you’ll be able to see the status more easily, even in dim lighting conditions.

Safety Features

Clip size and operating voltage range are two safety features that are important to consider when choosing an automotive test light. A larger clip size means that the light will be less likely to fall off, and a wider operating voltage range means that the light can be used on a variety of car types.

By taking all of these factors into account, you can be sure to choose the right automotive test light for your needs. With the right light, you’ll be able to easily diagnose any electrical problems in your car, and get it back on the road in no time.

What Are The Best Automotive Test Lights?

There are a lot of different automotive test lights available on the market. So, which one should you choose? Here is a list of the best automotive test lights, based on our findings.

Pick 1) – AWBLIN Automotive Test Light

• √ 3-60V DC Wider Range
• √ Illumination
• √ Anti-loss Needle Guard Protection
• √ LED Indication, Bidirectional Voltage Testing
• √ LCD Backlit Digital Display
• √ IP66 Waterproof
• √ Computer Safe
• √ 142″ Extended Spring Wire

Pick 2) – Jastind JTCVT-01B

• Measuring Range: DC 3-48v
• Resolution Ratio: .1V
• Voltage Accuracy: ±0.2V
• Display: LCD digital display
• Probe: Sharp Stainless steel
• Test Wire: Maximum 140 Inch

Pick 3) – Katzco Voltage Continuity and Current Tester

• The light bulb in the handle indicates when the circuit is good
• Ideal for voltage regulators, fuses, switches, broken wires, mechanics, electricians, and more
• Extra-large 50 cord increases flexibility, range, and freedom when testing

How To Use An Automotive Test Light?

When using a test light, always start with the engine off and the key out of the ignition. This will prevent you from accidentally energizing circuits and causing electrical shorts. Also, make sure to disconnect any aftermarket accessories such as radios or GPS units that may be plugged into the cigarette lighter or other power outlets.

Once you have disconnected all accessories, locate the battery and remove the negative (-) terminal cable. This will prevent your test light from grounding out on the chassis and creating a sparks or fire hazard.

Next, locate the circuit you want to test and identify a good ground point. A good ground point is typically a bare metal surface that is not painted or coated. Once you have found a good ground point, attach the alligator clip of your test light to the ground point. Then, touch the tip of the test light to the positive (+) terminal of the circuit you are testing. If the circuit is working properly, the test light should illuminate. If the test light does not illuminate, this indicates that there is an open in the circuit and further diagnosis will be necessary.

Keep in mind that some circuits may have more than one ground point. In these cases, it is best to attach the alligator clip of your test light to each ground point individually and then touch the tip of the test light to the positive (+) terminal of the circuit you are testing. This will help you determine which ground point is causing a problem with the circuit.

Finally, always remember to reconnect the negative (-) terminal cable to the battery when you are finished testing. This will prevent your car from accidentally draining the battery while you are working on it.

Following these simple tips will help you use a test light effectively and safely. With a little practice, you’ll be able to diagnose electrical problems like a pro!

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