Light My Bricks : Ghostbusters Ecto-1 21108 LED Lighting Kit

The following page is instructions for the Light My Bricks LEGO Ghostbusters Ecto-1 (21108) LED light kit. You purchase this kit on our official website.

To ensure a trouble-free installation of your light kit, please read and follow each step carefully.

If you run into any issues, please refer to the online troubleshooting guide.

This user guide is also available to download in PDF format here.


Package contents:


Package contents:

  • 9x White 30cm Bit Light
  • 9x Flashing White 30cm Bit Lights
  • 2x 12-port Expansion boards
  • 1x Flat Battery Pack (requires 2x CR2032 Batteries)
  • 1x 5cm Connecting Cable

Extra Lego pieces:

  • 6x Lego 1×1 plates with clip (grey)
  • 4x Lego 1×6 plates (white)
  • 4x Lego 1×2 plates (grey)
  • 4x Lego 1×2 plates (transparent blue)
  • 1x Lego 1×1 round plate (transparent blue)

Important things to note:

Laying cables in between and underneath bricks

Cables can fit in between and underneath LEGO® bricks, plates, and tiles providing they are laid correctly between the LEGO® studs. Do NOT forcefully join LEGO® together around cables; instead ensure they are laying comfortably in between each stud.

CAUTION: Forcing LEGO® to connect over a cable can result in damaging the cable and light.

Connecting cable connectors to Expansion Boards

Take extra care when inserting connectors to ports of Expansion Boards. Connectors can be inserted only one way. With the expansion board facing up, look for the soldered “=” symbol on the left side of the port. The connector side with the wires exposed should be facing toward the soldered “=” symbol as you insert into the port. If a plug won’t fit easily into a port connector, do not force it.

WARNING: Incorrectly inserting the connector can result in bent pins inside the port or possible overheating of the expansion board when connected.

Installing Bit Lights under LEGO® bricks and plates.

When installing Bit Lights under LEGO® pieces, ensure they are placed the correct way up (Yellow LED component exposed). You can either place them directly on top of LEGO® studs or in between.


OK, Let’s Begin!


Instructions for installing this kit

1.) Let’s start by removing the roof of the car.

2.) We will be installing lights to the headlights first. To do this, remove the following pieces from the front of the car.

Continue to remove the following pieces which make up the windscreen, side windows, and grey triangular tiles from the sides of the car.

4.) Remove the front section with the grill and number plate attached, followed by the 2 Lego 2×4 plates with light pieces attached.

5.) Remove the 2 grey round pieces as well as the transparent round pieces connected to them.

Take 1 standard Bit Light (non flashing) and place it on top of the stud of the grey round plate ensuring the LED component part is facing the correct way up. Secure the LED in place by connecting the transparent Lego plate over the top.

Install the remaining LEDs to all front headlights (2 on each side) using the above process so that we have a total of 4 standard Bit lights installed. Reconnect the light pieces back to the 2 Lego 2×4 plates ensuring that the cables from the LEDs are facing upward and then reconnect the plates back to the front of the car.

Reconnect the front middle section with the grill and number plate attached.

6.) Before reconnecting the white Lego pieces which make up the front bonnet, ensure that the cables from the LEDs are laid in between the studs of the Lego plates underneath as per below example images.

7.) Hide 2 cables from the lights on the left side of the car (looking from the front) up the left side by laying them in between the white studs and then reconnecting the grey triangular plates over the top of them.

8.) Before we hide the 2 cables from the right we will first install an LED to the blue light at the right side window. To do this, remove this section at the grey stud with clip.

Take another standard Bit Light (non flashing) and install it with the LED component part facing down (as it wont connect with it facing up). Secure this into place by connecting another transparent blue plate (which we have provided) over the top.

Ensure the LED component part is facing down or inward

Reconnect this section back to the side of the car ensuring the cable from the LED is on the inside facing the car.

9.) Take the cable from the LED we just installed and the 2 cables from the front right lights and hide them in between studs up the right side of the car by reconnecting the grey triangular plates over the top of them.

10.) We will now install 2 LEDs to the tail lights. Turn the car to the back and remove the back window and white back section of the car. The back section should remove in one piece.

Remove the transparent red cone pieces from each side of the car. Take a standard Bit light(non flashing) and place it over the top of the red stud on the side of the car ensuring the LED component part is facing the correct way up. Secure the LED in place by reconnecting the transparent red piece over the top of it. Ensure the cable from the LED is facing toward the middle so that we can hide it behind the back piece we removed earlier.

Repeat this step for the tail light on the other side using another standard Bit Light. Reconnect the back piece with the ghostbusters logo on it and ensure the cables from the LEDs are hidden behind.

11.) It’s time to neaten up all the cabling from the LEDs we have installed so far. Take the 5 cables from the front lights and twist/wind them around each other starting from the base working your way up. They should all come together neatly.

Repeat this step for the cables from the tail lights, twisting/winding them around each other. We should now have 2 groups of cables.

12.) Connect the cables from the tail lights into one of the 12-port expansion boards (expansion board#1) by first winding them around the board before connecting them into the first 2 available ports. We are winding them around the board so that we don’t have too much excess cabling to have to hide later on.

13.) Take the battery pack and insert the 2x CR2032 batteries. Connect the battery pack cable into the next available port on the expansion board.

14.) Connect the cables from the front lights into the next available ports of the expansion board then tuck the cabling underneath the expansion board in the back seat section of the car.

Reconnect the back window.

We can now take the time to test the lights we have installed so far by simply turning the battery pack switch to “ON” and verifying all is OK!

Reconnect the side windows.

15.) We will now install lights to the roof of the car. The roof is made up of 3 white base plates, front, middle and back. Start by removing the back section, followed by the grey 2×6 plate with blue light pieces connected to it.

Remove the following pieces from the 2×6 plate and then connect one of the provided grey 1×2 Lego plates on each side as per below.

16.) Take 1 flashing Bit light and place it on top of the grey stud closest to the outside of the plate ensuring the LED component part is facing the correct way up. Secure this in place by connecting one of the provided transparent blue 1×2 plates over the top. Repeat this for the light on the other side ensuring the LED is installed to the stud closest to the outside and the LED component is facing the correct way up.

Reconnect the transparent blue triangular plates we removed earlier on top of the additional plates we just installed.

17.) We will now install flasing LEDs to the blue spot lights at the front. Remove the grey plates with clips from the pole and then disconnect the round blue pieces from them.

Note: This may be a little tricky and you may need to use the Lego removal tool for the blue pieces.

Locate 2 of the provided grey plates with clips as we will be replacing the original ones with these. Take another 2 flashing Bit Lights and install them by placing them over the studs and connecting the blue transparent round pieces over the top.

Reconnect these 2 plates to the pole and then reconnect them to the rest of the roof section.

It is important to ensure that the cabling for the 4 lights are facing down and behind the pole.

18.) Reconnect the 2×6 plate to the rest of the roof, without the white plate underneath. Then remove the red light with white stud underneath so we can install another flashing Bit Light to it.

Take another flashing Bit light and install it to this section ensuring that the LED is laid over the white stud and secured down by reconnecting the red piece over the top.

Reconnect this section to the roof of the car ensuring the cable from the LED is threaded behind the black pole and down the middle in between the grey and white plates.

19.) Take all the cables and lay them down the middle of the middle white plate before reconnecting the back white plate underneath.

Secure the 2 white base plates of the roof by connecting the provided white 1×6 plates on each side as per below. We will not be reconnecting the original 2 round black pieces so you can discard these.

20.) Take the 5 cables from the back lights and twist/wind them around each other (like we did for the front and tail lights) so they all come together neatly.

21.) Turn the roof around to the front and remove the following sections:

– the front roof section
– the white 4×4 plate with the clear light piece attached
– the grey pole with red and grey light pieces attached.

22.) Take the white 4×4 plate with pieces attached and disassemble the pieces as we will be replacing the 2 grey pieces.

Note: This may be a little tricky and you may need to use the Lego removal tool for the red and grey round pieces.

Take one of the provided grey Lego pieces with clip and place 1 standard Bit Light (non flashing) on top of the stud. Secure the LED in place by connecting the transparent red round piece over the top ensuring that the LED component part is facing the correct way up.

Ensure the cable from the LED is facing the same way the clip underneath is facing

Reconnect the round grey Lego piece to another provided Lego piece with clip then re-attach the 2 pieces back to the pole before then reconnecting this back to the roof. Ensure that the cable from the red LED is hidden behind the pole.

23.) Take another standard Bit Light and place it in the middle of the white 4×4 plate (in between the studs). Reconnect the clear round Lego light pieces over the top to secure the LED in place. Reconnect this section back to the roof of the car ensuring the cable from the LED is facing forward.

24.) Take the front section of the roof and remove the white roof plate from underneath, then remove the transparent blue triangular pieces, followed by the grey pole with attached light pieces.

Connect the 2 provided 2×2 grey Lego plates in the following positions.

Install 2 flashing Bit lights to this section by placing them over the top of studs on each side (furthest away) and connecting the provided 2×2 transparent blue plates over the top, same way as we did for the back flashing lights. Ensure the cables from the 2 LEDs are facing toward the front, then reconnect the triangular pieces over the top.

25.) Take the front grey pole with attached lights and disassemble all the pieces as we will be replacing the grey pieces with new pieces (with different clips).

Note: This may be a little tricky and you may need to use the Lego removal tool for the blue round pieces.

Install the final 2 flashing Bit Lights to this section by placing them over the studs of the provided grey pieces (with clips) and connecting the transparent blue pieces over the top. Ensure the cables are facing the same way as the clips, then reconnect this section back to the roof.

26.) Reconnect the grey 2×6 plate back to the white roof piece ensuring all cables are facing toward the back and hidden behind the grey pole as per below. Reconnect the front roof section to the middle roof section. You may find that this may not connect securely. This is OK as we will be securing the roof sections with extra Lego pieces in the next step.

27.) Take the 2 provided Lego 1×6 white pieces and connect them underneath the roof securing the front and middle roof sections together.

27.) Turn the roof on its side to allow you to then group all the cables from the front roof LEDs. Twist/wind them around each other, same way we did for the rest of the light cables.

28.) Take the 2 groups of cables from the roof lights and loop them around so that we do not have too much excess cabling. Use some tape to tape the cables together to prevent them from unwinding.

29.) Take another expansion board (expansion board#2) and connect the first group of 6 lights from the front section of the roof to the first available ports on the expansion board.

Connect the other group of lights from the back section of the roof to the next available ports on the expansion board#2.

30.) Take the 5cm connecting cable from the kit and connect it to the last available port on expansion board#2.

Connect the other end of the 5cm cable to a spare port on expansion board#1.

31.) Tuck all the cables down below and then re-position the battery pack so that the switch is facing toward the back. Place the battery pack over the top of all the components and then reconnect the roof section.

This now completes installation of the LED lighting kit.

To turn the lights on, simply lift up the roof section (from the back) and turn the battery pack switch to “ON”.

Your Lego Ghostbusters Ecto 1 has now come “alive”!

Light My Bricks : Mini Cooper 10242 LED Lighting Kit

The following page is the instructions for the Light My Bricks LEGO Mini Cooper (10242) LED light kit.

To ensure a trouble-free installation of your light kit, please read and follow each step carefully.

If you run into any issues, please refer to the online troubleshooting guide.

To download this instructions guide in PDF format please click here.

Please note: This page lists instructions for the LED light kit only. If you are wishing to purchase the Light My Bricks LEGO Mini Cooper (10242) LED light kit , please click here to view the product page


Package contents:

  • 9x White 30cm Bit Lights
  • 1x 12 Port Expansion board
  • 1x USB Power Cable

USB Power Cable has replaced Flat & Round Battery Packs (CR2032) as of June 2022 due to child safety regulations. Please use the USB Power Cable in place of the Battery Pack.

Lego Pieces:

  • 2x Lego® 1 x 1 trans orange round plates
  • 1x Lego® 1 x 2 trans red tile
  • 2x Lego® 1/2L technic pins
  • 1x Lego® 6 x 10 plate

Important things to note:

Laying cables in between and underneath bricks

Cables can fit in between and underneath LEGO® bricks, plates, and tiles providing they are laid correctly between the LEGO® studs. Do NOT forcefully join LEGO® together around cables; instead ensure they are laying comfortably in between each stud.

CAUTION: Forcing LEGO® to connect over a cable can result in damaging the cable and light.

Connecting cable connectors to Expansion Boards

Take extra care when inserting connectors to ports of Expansion Boards. Connectors can be inserted only one way. With the expansion board facing up, look for the soldered “=” symbol on the left side of the port. The connector side with the wires exposed should be facing toward the soldered “=” symbol as you insert into the port. If a plug won’t fit easily into a port connector, do not force it.

Incorrectly inserting the connector can can result in bent pins inside the port or possible overheating of the expansion board when connected.

Installing Bit Lights under LEGO® bricks and plates.

When installing Bit Lights under LEGO® pieces, ensure they are placed the correct way up (Yellow LED component exposed). You can either place them directly on top of LEGO® studs or in between.


OK, Let’s Begin!

Instructions for installing this kit

This model has 6 lights on the front and three lights on the back. As we install the lights, we are going to run the wires to a central point underneath the vehicle. This is where we will connect them up as seen in the picture below.

Start by taking the roof off and opening the bonnet.

Hold on to the bonnet and pull it up to remove it. Sometimes the side pieces will come out as well and other times they won’t. If they don’t, remove them manually and attach them to the sides of the bonnet.

Above the front grille, there is a 1 x 8 light grey tile and two 1 x 4 green tiles behind it. Remove the 1 x 4 tiles and the piece they are sitting on.

Remove the transparent clear dish pieces from both front fog lights.

Grab a White Bit Light and hold it in the bottom section of the light grey dish piece that is still on the car. hold it near the middle with the wires coming away from the centre of the car.

Replace the transparent clear dish pieces.

Remove the headlights by placing your thumb on the headlight and lifting it upwards, also removing the plate and tile on top of it.

Remove the indicator and the bricks attached to it (if you pull the green brick behind the indicator forward, a few pieces should all come out together).

Remove the unusual looking grey piece from the place next to where the indicator was.

Look for the space underneath a black plate and above the green plate that is now visible. Feed the plug end of the fog lights through this gap.

Pull the wire through and then replace the unusual looking grey piece.

The transparent orange indicator lights that came with this model do not fit our lights underneath them. Get the transparent orange 1 x 1 round plates to use for the indicators.

Pick up the indicator pieces the you removed earlier. Remove the transparent orange indicator plate.

Grab a White Bit Light and hold it in place above the stud that is now exposed because the transparent orange piece was removed. Gently place a transparent orange 1 x 1 round plate over the White bit light.

Feed the plug end of the White bit light through the unusual looking grey piece and pull it through as you return the indicator pieces to their position.

Fit the indicator pieces back in their position.

Replace the headlight and the plate and tile on top of it.

Remove the transparent clear dish pieces from both head lights.

Grab a White bit light and hold it in the centre of the of the light grey shield piece that is still on the car. Hold it so that the wires coming vertically down.
Replace the transparent clear dish piece.

There is a small gap above the indicator where you can run the plug end of the headlight wire through the unusual looking grey piece.

Run the wire through.

Now you should have 6 wires hanging out of the engine bay going all over the place!

We are going to feed the wires through to the interior of the car. We are going to feed the three pairs of wires from lights on the right down the right hand side of the engine and into an existing gap in the “firewall”.

Look for the wire near the floor in the front of the car’s interior and pull it through when you can see it.

The left hand side looks a little different because the steering wheel is there. Look for the metallic silver technic piece that is part of the steering wheel assembly and feed the wires passed it.

Once all the wires are pulled through, you should see that they all fit comfortably within the engine bay running down either side of the engine.

Replace the front piece with the two green 1 x 4 tiles on top then put the bonnet back on.

Now we want to run the wires to the underside of the car. We will do this by feeding them through the gaps on either side of the gear stick.

Remove the gear stick and feed the wires on the left hand side through the gap in the floor.

Pull them through the underside of the car.

Remove the steering wheel and feed the wires on the right hand side of the car through the gap on the right hand side of the gear stick.

Replace the gear stick and the steering wheel.

OK, let’s turn the vehicle around so that the back is facing you.
Open the boot and remove the contents (if you kept the picnic gear in the boot).

Now is the time to substitute the two 1 x 1 transparent red plates with the 1 x 2 transparent red plate.

Remove the plate or plates that are representing the break light on the back of the car.

Grab a White bit light and feed the plug end up behind the bumper bar. The bumper bar has some flex and is easily bent out a bit to fit the plug through.

Hold the LED end of the White bit light in the centre of the two studs on the piece that the brake light came off. The White bit light will not sit flush and will be in a slight angle.

When you replace the transparent red brake light piece, it will only close over about half of the stud leaving an obvious gap if you look closely. Carefully replace the transparent red piece brake light piece.

Let the wire from the brake light run out the back of the boot. Remove the transparent orange 1 x 1 plates that represent indicator pieces from the back of the car.

For each indicator, grab a White bit light and hold it in the centre of the stud that the transparent orange plate was removed from. The gently replace the transparent orange brick over the White bit light.

Now you will have three sets of White bit light wires hanging out the back of the car.
Lift up the grey floor of the boot (the bit that covers the spare wheel) until you have enough of it to hold on to. Twist it and pull it out.

Take the spare wheel out.

Looking inside the boot and under the back seat, you will see some white clip pieces holding a couple of red hinge pieces. Immediately behind that is a hole where you might see some light come through if you lift the car a bit. Feed the White bit light wires through the hole and look for them on the underside of the car.

Grab the Coin Cell Battery Pack and feed the plug end of the wires through the same gap.

USB Power Cable has replaced Flat & Round Battery Packs (CR2032) as of June 2022 due to child safety regulations. Please use the USB Power Cable in place of the Battery Pack.

If using the USB Power Cable you will be unable to hide the power source. Instead, you will need to run the USB Power Cable out from the back, or from underneath the car directly from the 12-Port Expansion Board.

Let the Flat Battery Pack rest in the boot. Close the boot and rest the car on its side so you can access the bottom of the car.

Grab the 12 Port Expansion Board and connect each of the nine wires and the battery pack to the board.

Grab the two 1/2L Technic pins, get them now and working from the bottom of the 1:9 Expansion Board place the short end up through the holes on either side of the 1:9 Expansion Board.

Now fix the 12 Port Expansion Board to the black technic brick running along the side of the exposed centre section underneath the car.

Gather the wires together and work them until they are contained within the exposed centre section underneath the car, between the two black technic bricks. Have your 6 x 10 plate ready.

With the wires contained as seen above, the 6 x 10 plate will cover the exposed centre section and keep the wires inside.

Turn the car upright again and have the back of the car facing you. Open the boot to reveal the battery pack.

Holding the Coin Cell Battery Pack up and out of the way, replace the spare wheel. If you want to keep things as neat as possible, pull the wires from the lights back towards you a little bit so there is a good bit of slack. Place the spare wheel down on top of the wires from the lights.

Still holding the Coin Cell Battery Pack up and out of the way, refit the floor section of the boot.

Flick the switch on the Coin Cell Battery Pack and light her up!
The picnic basket, blanket and drink can all still fit in the boot!

Just pop the roof back on and you are done……enjoy!