Source smarter with
Leverage AI to find the perfect product match in seconds
Matches from over 100 million products with precision
Handles queries 3 times as complex in half the time
Verifies and cross-validates product information
Get the app
Get the Alibaba.com app
Find products, communicate with suppliers, and manage and pay for your orders with the Alibaba.com app anytime, anywhere.
Learn more

12v 3mm led

(4995 products available)

About 12v 3mm led

Types of 12v 3mm led

Some common types of 12-volt LEDs include:

  • 12v 3mm led warm white

    A warm white LED, such as a 12V 3mm LED, is usually between 2700K and 3000K in color temperature. Warm white LEDs have a soft, yellowish-white glow. They are widely used in homes and retail applications where a warm and inviting ambiance is preferred. Warm white LEDs are usually installed in living spaces, hotels, restaurants, and retail stores.

  • 12v 3mm led cool white

    A cool white LED is commonly between 4000K and 6500K. It has a bluish-white tone that resembles daylight. The bright and crisp appearance of cool white makes it ideal for task lighting. It is also widely used where visibility needs to be heightened, such as in offices, workshops, and outdoor areas. Because of its daylight-like quality, cool white LED is quite popular in commercial spaces, medical facilities, and areas that require clean and clear lighting.

  • 12v 3mm led blue

    A 12V blue LED typically emits light at a wavelength of around 450 to 460 nanometers. It creates a sharp, vibrant blue light that is often associated with modern and high-tech designs. Blue LEDs are normally utilized in decorative lighting, backlighting for screens and displays, and architectural lighting. They also play a role in creating dynamic lighting effects and are often seen in holiday lighting displays.

  • 12v 3mm led red

    12V red LED lights emit light at a wavelength of around 625 to 635 nanometers. It produces a bright and saturated red light. Red LEDs are quite common in signaling and indicator purposes, such as in automotive lights, electronics, and industrial equipment. In addition, it is widely used for decorative lighting applications, including landscape lighting and holiday lights.

  • 12v 3mm led green

    The wavelength for 12V green LED lights is typically around 520 to 530 nanometers. It creates a bright, pure green light that is easily visible and often used for signaling purposes. Green LEDs are normally used to indicate system statuses in electronics, such as power-on indicators. They are also utilized in landscape lighting, architectural displays, and holiday decorations.

  • 12v 3mm led yellow

    A yellow LED emits light at a wavelength of around 590 nanometers. This produces a warm, soft yellow glow. Yellow LEDs are typically used in applications that require gentle illumination or signaling. They are often found in outdoor lighting, such as street lights and warning signs, as well as in decorative lighting and string lights for events and holidays.

What makes 12v 3mm led durable?

  • Quality materials

    It features durable materials. In particular, the 3mm lens is often constructed from durable polycarbonate or acrylic. These optical plastics are impact-resistant and, therefore, do not shatter or break easily compared to glass.

  • Water-resistant

    Most 12V 3mm LEDs come with water-resistant features. This means that they are fit for use in outdoor settings with varying weather conditions. Many 3mm LED diodes are rated with an IP67 or IP68 waterproofing standard. It ensures protection against water immersion and dust, making the lights suitable for rugged environments or events held outdoors.

  • Heat management

    Durable 12V LED lights employ good heat management to ensure longevity. They come with heat sinks or are designed with efficient heat dissipation features. This keeps the diodes cool during operation and minimizes the risk of overheating. This is critical in maintaining light output and preventing premature failure.

  • Shock-resistant

    12V 3mm LEDs possess some features that make them shock-resistant. For instance, they are often made with diodes that use epoxy resin instead of glass. That, in addition to the polycarbonate lens, gives them higher resistance to impact and vibrations. Such features make them suitable for use in vehicles, machinery, or outdoor equipment.

  • UV and weather resistant

    Durable components like the UV-resistant lens and weather-resistant housing enable warm white, cool white, and color LEDs to perform for long outdoors. This quality prevents deterioration from sunlight exposure and ensures consistent performance over extended periods in outdoor environments.

  • High brightness consistency

    The diodes' quality manufacturing ensures that even with extended use, there will be consistent brightness. This makes 12V 3mm LEDs highly useful for applications that require constant light output, such as in automotive lights, signage, and certain industrial uses.

Industrial applications of 12v 3mm led

  • Signage and advertising

    12V 3mm LEDs are favorable in signage and advertising. Their compact size and high brightness make them ideal for illuminated signs, billboards, and display boards. In particular, red, green, yellow, and blue LED lights are widely employed to create dynamic, colorful signs that attract attention and enhance visibility. Because of their energy efficiency, they reduce operating costs, especially for large or digital displays.

  • Automotive lighting

    The size and voltage compatibility of 12V 3mm LEDs make them useful in automotive lighting, especially for interior lights, indicator lamps, and marker lights. Their compactness allows easy installation in tight spaces, and their durability ensures long-lasting performance in the harsh environment of vehicles. Moreover, their low power consumption enables reduced strain on car batteries while maintaining bright and clear lighting.

  • Industrial machinery and equipment

    12V 3mm LEDs are employed in industrial machinery and equipment for indicator lights and status displays. Their reliability and durability make them suitable for signaling functions, providing users with visual cues regarding machine status, operational readiness, or alarms. The energy efficiency of LED also contributes to lower energy costs across a wide range of industrial operations.

  • Medical equipment

    In medical industries, 12V 3mm LEDs are commonly used in diagnostic and therapeutic equipment. For instance, they are applied to illuminators, endoscopy equipment, and other medical devices where reliable lighting is critical. Because 12V LEDs offer bright, focused light while consuming low energy, they are valuable in enabling accurate medical procedures and diagnostics.

  • Optoelectronics

    The 12V 3mm LEDs are critical for optoelectronics, where they operate as light sources in various devices and applications. Their ability to emit precisely controlled light makes them useful in photodetectors, optical communications, and display technologies. Thanks to their compactness and high efficiency, these LEDs are ideal in advanced electronic systems requiring reliable lighting and signal transmission.

  • Retail and display lighting

    12V 3mm LED lights have wide applications in retail spaces and display showcases. Their small size and versatility enable retailers to create vibrant, eye-catching display lighting. This enhances product visibility and attractiveness. The energy efficiency and longer lifespan also make it economically practical for stores with continuously operating display lighting to ensure that the colors remain saturated and the lighting is sempre sublime without frequent changes.

Product specifications and features for 12v 3mm led

Technical specifications for 12V 3mm LEDs

  • Forward voltage

    The forward voltage of a 12V 3mm LED refers to the voltage range that must be applied across the LED for it to operate efficiently. This particular LED comes with a forward voltage of roughly 2.8 to 3.2 volts per LED chip.

  • Lens material

    12V 3mm LEDs use durable materials for their lenses, such as epoxy or polycarbonate. These materials ensure clarity, durability, and good light emission. These are preferred over glass due to their impact resistance and flexibility.

  • Wattage

    The wattage of the 12V 3mm LED is typically around 0.3 to 0.5 watts per LED. This low wattage makes the diodes energy efficient and ideal for applications like backlighting and decorative lighting.

  • Lens color

    12V 3mm LEDs are available with different lens colors to produce certain light colors, and they include red, green, blue, yellow, warm white, and cool white. The lens color is crucial in various applications, such as indicators, decorations, and lighting.

How to install 12V 3mm LEDs

  • Preparing for installation

    Before starting the installation, the space should be measured and the appropriate length of the LED strip to be prepared should be determined. In particular, non-water-resistant types should be installed indoors, while the resistant type should be installed outdoors.

  • Attaching the LED strip

    The LED strip should then be attached using its pre-attached adhesive backing or a mounting bracket. The strips should be secured firmly to make sure they do not move around or become loose over time.

  • Testing the lights

    After attaching the LED strip, it is recommended not to secure it fully first. Just attach it lightly so that it is possible to test the lights and see whether they work before making everything permanent. Plug it in and switch it on to see whether the LED light comes on.

  • Screwing in the strips

    After testing the LED lights to ensure they are working, the strips can be secured in their permanent position. If using a bracket, screw it in to hold the light strip firmly in place. If the strip has an adhesive backing, press it down firmly to secure it in place.

Maintenance and repair for 12V 3mm LEDs

  • Cleaning

    To ensure that 3mm LED lights have optimal brightness, clean the LEDs and associated components regularly. This will prevent dust and grime from dimming the light. Use a soft, dry cloth to wipe the LEDs gently. In addition, avoid using harsh chemicals that might damage the LED or its housing.

  • Check connections regularly

    Loose or corroded connections can dim or flicker 12V LEDs or make them stop working altogether. Regularly inspect the wiring, connectors, and solder joints for signs of wear, corrosion, or damage. Repair or replace worn-out components as needed to ensure a good electrical connection.

  • Monitor power supply

    Check that the power supply is operating properly and within the voltage range necessary for the LED. If the power supply is malfunctioning or delivering inconsistent voltage, it may cause the LED to dim or flicker. This power source may also lead to reduced LED lifespan. Replace worn-out or malfunctioning power supplies to ensure stable LED operation.

  • Replace individual LEDs when necessary

    For LED strips or arrays where individual 3mm LEDs can be replaced, monitor them for signs of failure, such as dark spots or inconsistent lighting. Worn-out LEDs should be replaced to restore full brightness. Use a soldering iron to carefully remove the worn-out LED and solder in a new one.

  • Use dimmers and controllers properly

    If 12V LED lights are controlled by dimmers, controllers, or automation systems, make sure they are compatible with LED lighting. Malone devices that are incompatible with LED technology can cause flickering or inconsistent brightness. Properly set up and maintained dimmers and controllers help in achieving the desired lighting effect and prolong LED lifespan.

Q & A

Q. What is the lumen output of a 12V 3mm LED?

Typically, the lumen output of a 12V 3mm LED varies depending on the LED color and individual manufacturing conditions. However, they usually produce around 2 to 5 lumens per LED. The overall lumen output, therefore, increases with the number of LEDs in the system and their specific configuration.

Q. How does the 12V LED compare with regular LEDs?

The major difference between 12V LED lights and regular LEDs is the voltage input. While standard LED lights are usually 2V-3V and require a low voltage range, 12V LED lights are made for more demanding applications. These require a higher voltage range and are more flexible to install.

Q. Can 12V 3mm LEDs be used outdoors?

Yes, 12V 3mm LED bulbs are suitable for outdoor use, especially those with water and weather-resistant features. Due to their durability and resistance to moisture, they are ideal for garden lighting, patio lighting, and other architectural lighting projects installed outdoors.

Q. How is a 12V 3mm LED different from a 220V LED?

12V3mm LEDs are low-voltage lights that can be easily installed in tight spaces for small-scale applications. In contrast, 220V LEDs are high-voltage lightings that are ideal for large-scale industrial and commercial applications.

Q. What colors are available for 12V 3mm LEDs?

12V 3mm LEDs come with different colors, including red, green, blue, yellow, warm white, and cool white. Each of these colors has different applications. For instance, blue and green LEDs are mostly used for decorative purposes, while warm and cool white LEDs are used for lighting.