Light Kit for LEGO® Harry Potter Diagon Alley #75978

LED Light Kit for #75978

149,99 €

In stock

Version Classic Remote

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LED light kit only.
LEGO® set not included.

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Your guide to lighting this set

Assembly instructions

Light Kit for LEGO® Harry Potter Diagon Alley #75978 — standard build, without the LED light kit — From Display Piece To CenterpieceDrag the slider to see what your set looks like before and after our LED kit.

Light Kit for LEGO® Harry Potter Diagon Alley #75978 — lit with the LED light kit — From Display Piece To CenterpieceDrag the slider to see what your set looks like before and after our LED kit.

Features

A light kit for your favourite build

Explore the LEGO® Harry Potter Diagon Alley LED light kit #75978 and picture its place in your collection. The collection brings back the pleasure of familiar places. The set number is your starting point when choosing a light kit. Take a moment to look at the model’s volumes and façade. The display belongs in the room where you enjoy your collection.

A reason to look again
A corner of the wizarding world stays within view. Light invites you to enjoy the building after the day is done. Reserve a corner for the model beside your books.
Your models at home: #75978
Your collection can connect the saga’s locations like chapters in the same book. Your shelf tells a story through the models you choose to keep in view.
Take a closer look: #75978
Enjoy another look at the model’s volumes and façade after the final brick. Compare the kit photos with the display you picture for the building.
Choose a gift for their model
Their set number and the kit version guide your gift choice. Keep a place for your building in your collection. Before ordering, match #75978 to the model you own.
The steps before fitting
Plan the cable route and the space around your model before beginning. Prepare your workspace, then check access to the different parts of the model.
Leave access to the connection
Choose the place for the building from your usual viewing distance. Plan the route to power for the building. Your scene can find its place beside your books.

Pick Your Version

Select the option that matches your display preferences and lighting needs.

Set it once. Leave it glowing.

For the build that's found its shelf and isn't moving again.

Battery Box – compact 3×AAA unit (batteries not included)
Full LED set, tuned to this model
Custom effects, pre-programmed for this build
Precision spotlights on the details worth staring at
PDF manual and video guide

Flick it on when you walk in. That's the whole ritual.

Find the light kit for your model: #75978

The LED light kit for LEGO® Harry Potter Diagon Alley #75978 brings your display into the evening. Read the kit contents and version details before choosing. A book beside the model gives the wizarding world a corner of your room.

A favourite build can become part of the time you spend relaxing at home. Arrange the building with pieces you enjoy seeing alongside it. Look at the model’s volumes and façade from your usual viewing place.

The BMB instructions page is a starting point for finding your guide. Find #75978 on your model information before choosing the version. Leave access to the connection for the building in your display.

The pleasure of building continues in the way you display the building.

Explore Harry Potter light kits, the light kit for Harry Potter™ Diagon Alley™ Wizarding Shops #76444 and BMB kit instructions.

About

Bright My Bricks

Transform your finished build into a true display piece with a Bright My Bricks LED light kit. Designed specifically for this LEGO set, our kit delivers precise, warm illumination that highlights every detail. Note: you are purchasing the lighting kit only; the LEGO set itself is sold separately

Instructions

Every kit ships with a printed quick-start card, a full PDF manual and a step-by-step video. Here is the shape of the job before you open the bag.

Step 1: Unpack and check
Build the LEGO® set first — lighting a half-finished model means taking it apart again. Lay every component out against the parts list before you start: a missing piece found now costs five minutes, found mid-install it costs the session.
Step 2: Position your LED lights
Each LED goes in a spot the guide names. Thread the wire between bricks as you go rather than at the end — routing is the one step worth taking slowly, and it is what separates a kit you notice from one you do not.
Step 3: Wire your power system
Seat each cable in its module. Present the connector square and push gently; if it resists, back off and realign rather than forcing it. A forced connector is the one thing that bends a pin.
Step 4: Power up and check
Test everything before you close it up. Confirm each LED lights, then hide any wire that shows. A dead connection found now is trivial; found once the set is sealed, it is not.
Step 5: Perfect your display
Tuck the last of the wire out of sight and put the set where it belongs. Installed as directed, the build looks untouched — until you switch it on.

The last step isn't in this guide. It's the evening you finish, turn the room lights off, and watch something you spent weeks on hold its own glow. That is the moment the kit was built for.

Customer Reviews

FAQs

Do I need any special skills or tools?

No. If you can build the set, you can light it. Everything is plug-and-play — no soldering, no wiring knowledge, no tools beyond your hands. The manual walks each step with photos.

Do I have to take my set apart?

Rarely more than partially. You'll lift a few plates and open a few sections to route wire and seat LEDs. The guide tells you exactly which ones, zone by zone, so you're never guessing.

How is the kit powered?

Two options, both included in the design: a battery module (3×AAA, batteries not supplied) for sets you move around, or USB into any power bank, wall adapter or computer for a display that stays lit.

Will the wires show?

Not once installed as directed. The wire is flat ribbon, thin enough to run under a plate or between studs without breaking clutch. Routing is the one part of installation worth taking slowly — done properly, the set looks untouched.

Is it safe for my bricks?

Yes. The whole system runs at 5V with micro-LEDs that don't heat up, so there's nothing to warp, melt or discolour. Components are tested against international safety standards, and nothing in the kit modifies or marks a brick — the installation is fully reversible.

What if a part is missing or faulty?

Use our Faulty Component Request page and we'll send a replacement. Two-year cover, in line with EU consumer law.