LED Modules

LED modules are the go-to choice for sign makers and installers who need reliable, even illumination for channel letters, lightboxes, fascias and retail displays — with clear options by depth, voltage and IP rating.

To choose the right LED module, start with your application depth (shallow letters vs deep lightboxes), then match your voltage (typically 12V or 24V) and environment (IP20 indoor, or IP65–IP67 for outdoor and damp locations). If you need brightness control, select dimmable LED modules and pair them with a compatible driver or dimming method such as PWM or 0–10V where required.

This collection includes small LED modules for tight returns, standard and large modules for broader coverage, plus push-through LED modules for decorative dotted effects — alongside LED light sheets for flexible backlighting across complex shapes. Complete your setup with a compatible power supply and accessories from LED power supplies, LED controllers & dimmers and LED cables & connectors.

Need help choosing the right LED modules?

Contact our technical team for free advice: sales@weloveleds.co.uk

Frequently Asked Questions

What are LED modules used for?

LED modules are small, pre-wired lighting units used in signs, built-up letters, lightboxes, fascias and retail displays. They provide bright, even backlighting and are ideal for both indoor and outdoor signage.

Are LED modules dimmable?

Yes. Most LED modules are dimmable when paired with a compatible LED driver or dimmer. Options include TRIAC, 0-10V, PWM or DMX dimming depending on your setup.

Do LED modules need a specific power supply?

Yes. LED modules require a constant-voltage LED driver matched to their rated voltage, typically 12V or 24V. Leave at least 20 percent extra wattage for safe and stable operation.

Are LED modules waterproof?

We supply indoor IP20 modules and outdoor-rated IP65 or IP67 modules. Choose an IP rating suitable for your environment, especially for external signage or damp locations.

How do I choose the right LED module?

Choose based on your sign depth and brightness needs. Mini modules suit shallow letters, wide-angle or high-output modules work well for lightboxes, and waterproof modules are ideal for external signs.

Can I mix different types of LED modules in one sign?

It is not recommended. Mixing modules with different wattages, beam angles or colour temperatures can cause uneven lighting. Use one consistent module type throughout the installation.

How to choose the right LED modules for signs, letters and lightboxes

The best LED module depends on four things: your letter or lightbox depth, the voltage of your system (12V or 24V), the environment (indoor vs outdoor IP rating), and whether you need dimming or control. Use the table below to pick the right module type quickly, then check power and accessories to complete the install.

Variant / Type	Best For	Benefits
Small LED Modules	Shallow channel letters, tight returns, compact signage	Fits into narrow spaces while keeping output consistent and even
Standard LED Modules	General signage, built-up letters, medium-depth lightboxes	Reliable coverage, straightforward wiring, strong all-round performance
Large / High-Output LED Modules	Deeper lightboxes, larger faces, wider diffusion distances	Higher punch and wider spread for big areas and deep builds
Push-through LED Modules	Decorative dotted lighting, contour effects, feature panels	Clean push-fit install and uniform dot spacing for visual impact
LED Light Sheets	Complex shapes, shallow panels, even backlighting across surfaces	Flexible layout for smooth illumination where modules are awkward to place

Match modules to depth and diffusion distance

Depth is the quickest way to narrow your choice. Small modules suit shallow returns and tighter builds, while larger or higher-output modules help when you’re working with deeper lightboxes or larger faces that need more spread. If you’re lighting irregular shapes, LED light sheets can simplify layout and improve uniformity.

Choose the right voltage and build in headroom

Most signage LED modules run on constant-voltage 12V or 24V. Add up the total wattage of your modules and choose a driver with at least 20% spare capacity to keep the system stable, reduce heat stress and support long service life.

Pick an IP rating for the environment

Use IP20 modules for dry indoor installations. For outdoor signage or damp locations, choose IP65–IP67 modules to reduce failure risk and protect against water ingress, especially around sign joins and cable entry points.

System dependencies

LED modules require a compatible constant-voltage driver. For brightness control, pair your modules with a suitable dimming or control solution, and use proper cable and connectors for safe, repeatable installs: LED Power Supplies, LED Controllers & Dimmers, LED Cables & Connectors.

Typical applications include channel letters, halo-lit signage, lightboxes, fascias, retail displays, exhibition graphics and feature panels where you need consistent brightness with trade-grade reliability.

We stock sign-grade LED modules in the UK with fast dispatch, dependable warranties and practical technical support from a team that works with signage and install pros every day — so you can spec confidently and fit once.