What is a 7440-bulb used for?

As forementioned, 7440 is for signal filament such as turn signal, or back up light.

What is a 7443-bulb used for?

7443 is for dual filament like Parking and Turn signal or Brake and Turn Signal.

Are 7443 and 3157 bulbs interchangeable?

While they are not exactly the same, 7443s and 3157 bulb models are in close competition with one another. The main difference between the two is the size—the 7443 bulb is slightly larger. Both the 3157 model and the USA-designed 7443 Switchback LED bulb offer a stellar choice for direct turn signal replacement bulbs. They also both offer white/amber light filaments, as well as protection against hyper-flashing and error codes. The 7443 also comes complete with a built-in resistor on the turn signal filament, as opposed to both the white and amber light filaments. This added protection against overheating is very valuable. As with the 3157, the 7443 features dual-colored LED lights with 360-degree output for that coveted “best in class brightness.” This model, like the 3157, also offers easy, “plug and play” installation for additional time-saving benefits. No additional resistors are needed, adding to the benefit of this bulb model.

What size are 7440 bulbs?

Size is a factor when you’re trying to establish compatibility between different types of turn signal bulbs and your car or truck’s make and model. 7440 single filament bulbs are typically 25 watts and used as rear turn signal lights as well as reverse lights, depending on the vehicle. They cannot be placed into a 7443-bulb socket; however, a 7443-replacement bulb can often be placed successfully into a 7440 socket.

How many lumens does a car brake light have?

The amount of light output from a car’s rear brake lights depends on the particular car or truck in question. Typically, rear brake lights are between 5 and 100 lumens. By comparison, front car lights range anywhere from 10 to thousands of lumens. That’s quite a difference! To illustrate the difference, consider this—on a clear night, a full moon is approximately 1 lumen. This gives you a visual example of the power of car brake lights’ lumens.

7440/7443 Parking Light, DRL LED Bulbs (PAIR)

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Availability: Many in stock

7440/7443 Parking Light, DRL LED Bulbs (PAIR)

$34.99 ~~$0.00~~ /

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15% OFF All PURCHASES!!

Code: Holiday15

Quantity

Description

Direct replacement for factory incandescent 7440/7443-size for Parking Light, and or Daytime Running Light (DRL)
12 3030 SMD type LED with a 5 high-power chip mounted at the top.
Full metal heatsinking for reliable operation.
Nonpolar and CK compatible electrical design.
Increased output with LED appearance.
Plug and play, simple installation.
500 lumens per bulb.

Overview

The 7440/7443 Underground lighting tail light bulb is manufactured with four side illumination and a projector lens on top increasing the overall brightness. The aluminum housing distributes heat evenly to maximize the lifespan of the bulb. And the best part is that these bulbs are plug and play so installation is quick and simple.

Illumination. All Underground Lighting LEDs are rated with accurate lumen figures, never calculations or guesses. We test the true output, and provide you with real numbers to compare. At 500 lumens, the Underground Lighting white parking light LED will provide more total light output than a factory incandescent bulb.

Dependability. Unlike other bulbs on the market, this bulb is built with the latest updated aluminum circuit board for quick heat dissipation and better LED chip protection to ensure durability. This bulb will last for years, rather than months, with no flickering or failure. And like every Underground Lighting product, it's backed by our industry-leading two-year replacement warranty.

Expertise. After over a decade in business, Underground Lighting is one of the most trusted names in automotive lighting. We design and manufacture all of our own products to meet our strict quality standards. We pride ourselves in having a knowledgeable staff to deliver superior service that will exceed your expectations. Please contact us if you'd like to discuss your lighting needs.

Please Note: 7443 CAN REPLACE 7440, BUT 7440 CANNOT REPLACE 7443.

[tabs][tab title="Warranty"] This product comes with a 2 year warranty. [/tab][/tabs]

Warranty

This product comes with a 2 year warranty.

FAQs

Frequently Asked Questions on LEDs

Which Color Is Best for Headlight Bulbs?

The best color for your headlight bulbs is white. You want to find a bulb around the range of 6000k in color temperature. The human eye reads this color and brightness better due to its similarity to natural sunlight.

That said, the best color for your headlights can be subjective. LEDs are also available in yellow, blue, and purple. Each color will work just fine on the roads and give your car a more distinctive look than the traditional white color.

Will LED Headlights Damage My Car?

No. LED headlights will not damage your car if properly installed. In addition, you want to purchase the correct LED light that will fit your car. For example, if your vehicle has a CANbus system, you want to buy the right product and install it correctly to avoid any potential issues.

If your car was not originally designed for LED headlights, you can purchase an LED headlight conversion kit. They are safe and will not damage your vehicle as long as you buy top-quality products.

Why Are LED Lights Better?

An LED light bulb saves more energy, produces less heat, and has more light. In addition, it uses 85% less electricity than standard lighting. It is also a lower-cost product but has bright light with a longer life span.

LED light is different from incandescent light. Blue LED combined with yellow phosphor creates white light. The high efficiency of LED light makes it a popular choice.

What Is the Purpose of LED Lights?

LED lights are used as a light source in our homes, devices, and vehicles. LED (light-emitting diode) lights use gallium compounds such as gallium arsenide and aluminum gallium. LED emits light by combining a P-type semiconductor with an N-type semiconductor. Once a voltage is applied, they release energy into light.

What Is the Lifespan of LEDs?

LEDs have a long life span. When an LED is operating at 70% capacity, it has reached the end of its life span.

Incandescent bulbs have around 750 to 2,000 hours of light. In comparison, LED bulbs can have 50,000 to 100,000 hours of light, making them better investments.

Can I Replace Incandescent Bulbs with LED in My Car?

Yes! You can change your initial bulbs to LED in your vehicle. In addition, there are different places where you might want to swap out for LED lights. For example, you can change your headlights, rear license plate lights, interior door entry lights, rear brake lights, and more.

First, however, you need to inspect what type of bulb you need. There are different bulbs with various designs, so you must buy the right one to fit.

Second, different areas of your car may require special tools or specific parts to work properly. Once you have found the products you need, you’re ready to go LED.

To find more questions and answers, please visit our FAQ Page.