Blog
October 18, 2026
Colour-Changing LED Logo Signs: How We Made the L&T Logo Glow in Any Colour
Most LED signs glow in one colour. This one glows in any colour you like, and changes at the press of a button. Here’s how we built the L&T logo with a colour-changing LED strip, an aluminium box and a white acrylic cap.
One sign, every colour
A logo that changes colour from a remote
Walk past most lit sign boards in Pune at night and you'll see the same two colours: white, or warm white. That's the light the LEDs inside make, and the coloured faces on top do the rest.
For L&T we wanted to show something else: a logo that can be green today, blue tomorrow and red on Diwali, or run through all of them while you watch. So we built the L&T symbol, about 2 ft across, with a colour-changing RGB LED strip inside. One small remote decides what it does.
Size
About 2 ft across, 2.5 to 3 in deep
Build
Aluminium trim-cap letters with a white acrylic face
Light
RGB LED strip with a built-in wireless receiver
Price
On request
Most LED acrylic signs come in one colour. We can also make signs that are multicoloured, and you control the colours yourself.
Same sign, three moods
Green, cyan, red: you choose
These three photos are the same logo, a few seconds apart. Nothing was changed except a button on the remote. (The face cap is off here, so you can see the light coming from the strip.)
Green
Every channel lit in one colour.
Cyan
Switched from the remote.
Red
One sign, any colour you pick.
Real photos of the L&T logo in our office, only light and colour corrected.
White or colour?
Why most LED signs are white, and when colour makes sense
A normal lit sign uses white LEDs and gets its colour from the face: red acrylic glows red, a printed logo glows in its print colours. That's simple, bright and reliable, and it's what most of our 3D LED glow sign boards and backlit acrylic logos use.
An RGB strip is different. Each LED holds a red, a green and a blue light, and mixing them makes almost any colour. Put it behind a white face and the whole logo turns whatever colour you choose.
Your brand colour, exactly
Set the logo to your blue or your green, instead of the colour of a sheet of acrylic.
Festivals and occasions
Orange for Diwali, red for a launch, green for Independence Day: change it in a second.
Get noticed
A slow fade from colour to colour draws the eye in a lobby, a showroom or a café.
Just because
Some logos simply look better alive. This one does.
How it is built
A dabba and its lid
The easiest way to picture this sign is a steel dabba. The box is deep and holds the food; the lid is shallow and slides over the top. Our letters work the same way. Sign makers call them trim-cap letters.
1
The box
Each part of the logo is a box of bare aluminium: a back plate with sides about 2.5 to 3 inches deep. Aluminium doesn't rust, so we left it unpainted.
2
The light
An RGB LED strip runs inside every channel, fixed to the back plate. Its wireless receiver is built in, so there are no extra wires to the remote.
3
The face
White acrylic (we call it 040 white) that lets the light through evenly, set in a shallow aluminium frame about an inch deep.
4
The cap goes on
The face frame slides over the top of the box, exactly like a dabba lid. The light now comes out of the front only.
The idea in one picture
Box below, cap on top
The aluminium box holds the LEDs. The cap holds the acrylic face and slides over the box.
Illustration, not to scale.
Look inside
What you see with the cap off
Take the face off and you see how simple it is: aluminium channels with the LED strip running along each one.
The strip
The RGB LED strip runs along every channel of the logo.
The cap
The white acrylic face cap, before it slides on.
Real photos from our office, only light and colour corrected.
The fun part
What the remote can do
The remote talks to the receiver on the strip. You can fix one colour and leave it, or let the sign run one of its preset effects. In this photo different parts of the logo are lit in different colours at the same moment: that's one of the running effects.
Fix one colour
Pick any colour, including your brand colour, and leave it there.
Fade
Glide slowly from one colour to the next.
Flash
Blink between colours, for a launch or an event.
Chase and sequence
Light runs around the logo, part by part.
At a glance
Colour-changing LED logo sign: specifications
Size
Made to your logo; the L&T logo is about 2 ft across
Letters
Trim-cap aluminium letters: back plate and sides 2.5 to 3 in deep, bare aluminium
Face
White (040) acrylic in an aluminium cap frame about 1 in deep
Light
RGB LED strip with a built-in wireless receiver; remote included
Modes
Any fixed colour, or preset effects: fading, flashing, chasing, sequence
Warranty
6 months, as for all our LED signs
Time
The same as our other LED signs
Where it goes
Indoors or a sheltered spot; outdoor version on request
Want one?
Price and what to send us
Every logo is a different size and shape, so we quote each colour-changing sign on request. Colour-changing LEDs cost only a little more than white ones, and we usually charge the same rate as white LEDs.
Colour-changing LED logo sign
price on request
Same logo in white LEDs
Warranty
6 months
Good to know
Send your logo
A CorelDRAW, PDF or AI file is best; a clear image works to start with.
Tell us the size
And where it goes: reception wall, lobby, shop front.
Power point
Keep a power point near the sign.
Where
Made in Pune, delivered across India.
Not sure whether colour or white suits your logo? Send it on WhatsApp and we'll tell you honestly.
Questions people ask
Colour-changing LED signs: FAQ
Can it stay one colour all the time?
Yes. Set your colour once and it stays that way until you change it.
Is it much more expensive than a white LED sign?
Usually not: we generally charge the same rate as white LEDs. The strip and the remote cost only a little more.
What is a trim-cap letter?
A letter built as a deep box with a shallow cap on top that holds the face, like a dabba and its lid.
Do I need an app?
No. It comes with a remote.
Can it go outdoors?
This one is made for indoors or a sheltered spot, like a reception or a covered entrance. Ask us for an outdoor version.
Can any logo be made this way?
Most can. Very thin strokes are hard to light evenly, so send us the logo and we will check.
Made in Pune
Your logo, in any colour
We made this one for L&T. In the end L&T chose a different solution from us for that office, so this logo now lights up the sample wall in our own office, changing colour as it runs through its effects. Come and see it, or let us make yours.
See more
Product
Backlit acrylic logo letters
Lit acrylic logos on a base plate, in white or warm white LEDs.
See the product →Your turn
Want your logo to change colour?
Send us your logo and the size on WhatsApp. We'll tell you how it will look and what it costs.
Looking for any specific product?
Drop us a line. Send us your query. And we’ll get back to you with solutions and answers.
Mitesh Sanghani
Mitesh lives, mostly for Saturdays.
But when forced to work, you’ll find him heading Orchid Digitals – a printing press in Pune.
If it’s an emergency, try looking for him in the hills behind his house. You’ll almost certainly find him… lazing under a tree, with a book in hand.
