LED light modules are simply devices that contain several light emitting diode (LED) bulbs. The devices will connect to a fixture or a battery which powers all of the LED bulbs simultaneously. LED modules are different from LED strips and LED Neon Flex, which both come in a strip form and are commonly used for lighting office spaces and showrooms as well as more decorative purposes such as retail signage or around the home.

LED modules are suited to a huge range of lighting projects and installations. Most commonly, LED modules are used in outdoor advertising and shop signage, but they can also be useful for domestic decorations including deck lighting, dashboard lighting, outdoor accent lighting, mood lighting and cabinet downlighting.

In this article, we'll take a look at two of the most popular colour options for LED modules: RGB and RGBW. We'll consider how they work and recommend an example of each type.

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What are RGB and RGBW LED modules?

RGB and RGBW LED modules are small colour-changing devices that can be used to create a variety of creative lighting effects. RGB LED technology has been on the market for a while, whereas RGBW is a relative newcomer. RGB modules contain red, green and blue emitters, and RGBW modules contain the same with an additional white LED chip. The combination of these colours at different brightness levels creates a more full spectrum of colour than a simple red, green or blue LED module is able to.

RGB and RGBW LEDs emit a very smooth and consistent colour—perfect for making a statement with feature lighting. By combining red, green and blue, RGB LEDs can achieve over 16 million different hues. However, some colours such as brown and pink are difficult to produce. Because of the added white chip in RGBW modules, you can create more pastel shades and hues of white that you couldn’t achieve with RGB LEDs alone.

RGB and RGBW LED modules can easily be identified by the number of pins on them: RGB modules will have four pins, while RGBW modules will have five. RGB and RGBW LED modules from WeLoveLEDs come with their own remote controls that adjust the colours automatically. An RGB controller has four outputs, whereas an RGBW controller has five outputs.

ROCK RGBW LED Module

The ROCK RGBW LED Module is a highly efficient lighting solution that is ideal for signage with a 50–70 mm return depth where a white LED chip is required in addition to the colourful RGB. This module runs on a low voltage of 12 V and has an ultra-wide 160° beam angle, making it perfect for slimline letters. The ROCK RGBW module also features an IP67 rating, meaning it is safe for outdoor use.

ROCK RGBW LED Module

The ROCK RGBW LED Module comes with a five-year replacement warranty and guarantees substantial longevity for both indoor and outdoor use. If you’re looking for an RGBW LED light capable of producing clear, efficient illumination in a versatile range of applications, look no further than the ROCK RGBW module.

ROCK RGB3 LED Module

For beautiful lightboxes and signage with a 50–70 mm return depth, the ROCK RGB3 LED Module could be for you. This is a high-quality RGB light source that also runs at 12 V and offers excellent efficiency with an ultra-wide 160° beam angle ideal for slimline letters.

Just like the ROCK RGBW LED Module, our RGB3 module comes with a five-year replacement warranty, meaning it can be installed with the peace of mind of knowing it’s built to last. This module also has an IP67 rating, so it can be used either indoors or outdoors for stage lighting, advertisements, open-air events, home decorations and a variety of other applications.

ROCK RGB3 LED Module

Frequently asked questions

How energy efficient are LED modules?

Very. LED modules and LED technology generally are the most energy-efficient kinds of lighting on the market, using approximately 90% less energy than traditional incandescent bulbs. For comparison, compact fluorescent lamps (CFLs) use around 60–80% less energy than incandescent bulbs, while halogens use just 20–30% less. Customers looking for lighting options that will save money and energy on their decorative lighting should opt for LED modules.

What are the best small LED modules?

At WeLoveLEDs, we stock a huge range of LED modules in three sizes: small, standard and large. Small LED modules are ideal for fixtures in narrow profiles. We recommend the dimmable ROCK1 LED Module, which runs at 150 lm/W and uses 33% less power than competitors. Thanks to its 3:1 lens, you only need half the usual number of modules to light channel letters when using the ROCK1.

Read our guide to small LED modules for more details and recommendations.

What are the best single-colour LED modules?

The ROCK LED range offers top-tier single-colour modules with a 10-year warranty for peace of mind. Available in multiple colour temperatures—such as pure white (6000K), cool white (5000K), neutral white (4000K), and warm white (3000K)—these modules deliver consistent, flicker-free illumination. Built with high-quality components and an IP65 rating, ROCK LED modules are suitable for both indoor and outdoor use. Whether you need crisp, daylight-bright lighting or a cozy, warm glow, the ROCK series has an option tailored to your project. Explore the full ROCK LED lineup for single-colour options in red, blue, green, and yellow, each designed to maintain brightness and efficiency over an extended lifespan.

Learn more in our guides to single-colour LED modules and pure/warm white LED modules.