CoolLED1248 App for Bluetooth LED Signs
CoolLED1248 is the free app that turns your phone into a remote for Bluetooth LED signs and panels. Send scrolling text, emojis, pixel graffiti, animations and ready-made templates to displays for cars, shop windows, market stalls, storefronts and LED masks.
A pocket remote for every LED sign
One app, endless places to shine
Wherever you can stick a Bluetooth LED panel, the CoolLED1248 app lets you change the message in seconds.
Cars & rideshare
Show pickup names, “on the way” notes or fun messages on a rear-windshield sign — popular with Uber and delivery drivers.
Shop windows
Switch between “Open”, “Sale” and seasonal promos without printing a single poster.
Market stalls
Catch eyes from across the market with bright scrolling prices and offers.
Storefront signs
Keep opening hours, menus and announcements current from behind the counter.
LED masks & wearables
Animate pixel art and effects on LED masks, hats and badges for events and parties.
DIY pixel projects
Hobbyists draw custom graffiti and animations frame by frame for any compatible panel.
Everything you can do with the CoolLED1248 app
Text, templates, drawing, animation and multi-program control — all over Bluetooth, straight from your phone.
Scrolling text & emojis
Type a message, pick colors and speed, add emojis, and push it to your sign instantly. Rich text and bold styles keep it readable from a distance.
Templates & patterns
Start from hundreds of built-in templates and patterns for sales, holidays, driving and more — then tweak them to fit your sign.
Pixel graffiti drawing
Draw directly on a pixel grid with the graffiti tools to create logos, icons and artwork your way.
DIY animations
Build frame-by-frame animations or play ready-made ones. Bring your CoolLED1248 animations to life with custom motion and color.
Multiple programs & regions
Combine several programs and split the screen into regions, so text, graphics and effects can run together.
Simple Bluetooth control
Pair over Bluetooth and update your display in real time — no cables, no accounts, no internet required.
See the app in action
Up and running in four steps
No manual required — most people send their first message in under a minute.
Download the app
Get CoolLED1248 free from the App Store or Google Play.
Connect over Bluetooth
Turn on your LED sign, open the app and tap to pair — no account needed.
Design your display
Type text, pick a template, draw graffiti or build an animation.
Send it to your sign
Push your creation to the panel and watch it light up instantly.
Works with the CoolLED sign family
The CoolLED1248 app talks to several generations of Bluetooth LED hardware. Available features can vary by model and app version.
CoolLEDX
The classic Bluetooth panels for text, images and animations.
CoolLEDM
Newer devices using an updated protocol.
CoolLEDU
Compact panels for signs and wearables.
CoolLEDUX
Extended models in the CoolLED line-up.
Not sure which one you have? The app detects your device name when you connect. Features and compatibility vary by hardware model and app version.
Guides & help, when you need them
Step-by-step articles to get the most out of your LED sign.
Getting started
Install the app, connect your sign and send your first message.
Browse all guidesAnimations & graffiti
Create, save and play CoolLED1248 animations and pixel art.
Templates & patterns
Find, customize and reuse built-in templates and patterns.
Using it on PC
What you can and can’t do on Windows and desktop, and the alternatives.
Device compatibility
Which CoolLED signs work and what each model supports.
Troubleshooting
Fix connection problems and the “not working” basics.
Loved by sign owners everywhere
Real reviews from the App Store and Google Play — we only show ratings of 4 stars and above.
Car owner
3+ years later and still flawless! I’ve had this CoolLED1248 panel in my rear windshield since I bought my car, and it has been worth every penny.
LED mask maker
This app with the mask is awesome. Very well done — keep up the great work!
Long-time user
This app and the device it’s for are wonderful and work like magic.
Family user
My family and I really like the app. Very easy to use, great color choices, and you can save your creations.
Car owner
3+ years later and still flawless! I’ve had this CoolLED1248 panel in my rear windshield since I bought my car, and it has been worth every penny.
LED mask maker
This app with the mask is awesome. Very well done — keep up the great work!
Long-time user
This app and the device it’s for are wonderful and work like magic.
Family user
My family and I really like the app. Very easy to use, great color choices, and you can save your creations.
Car owner
3+ years later and still flawless! I’ve had this CoolLED1248 panel in my rear windshield since I bought my car, and it has been worth every penny.
LED mask maker
This app with the mask is awesome. Very well done — keep up the great work!
Long-time user
This app and the device it’s for are wonderful and work like magic.
Family user
My family and I really like the app. Very easy to use, great color choices, and you can save your creations.
Car owner
3+ years later and still flawless! I’ve had this CoolLED1248 panel in my rear windshield since I bought my car, and it has been worth every penny.
LED mask maker
This app with the mask is awesome. Very well done — keep up the great work!
Long-time user
This app and the device it’s for are wonderful and work like magic.
Family user
My family and I really like the app. Very easy to use, great color choices, and you can save your creations.
Sign owner
Giving it 5 stars because the app does what it should and the light looks great.
Hobbyist
Once I learned everything it was great! It’s a cool gadget and I give it a full 5 stars with no complaints.
Sign owner
A pretty good variety of graphics to change your LED sign. Works as it should, and it’s updated with new graphics over time.
LED mask maker
Works great to control the RGB LED display I put into a mask. Creating my own animations is awesome and I enjoy it a lot.
Sign owner
Giving it 5 stars because the app does what it should and the light looks great.
Hobbyist
Once I learned everything it was great! It’s a cool gadget and I give it a full 5 stars with no complaints.
Sign owner
A pretty good variety of graphics to change your LED sign. Works as it should, and it’s updated with new graphics over time.
LED mask maker
Works great to control the RGB LED display I put into a mask. Creating my own animations is awesome and I enjoy it a lot.
Sign owner
Giving it 5 stars because the app does what it should and the light looks great.
Hobbyist
Once I learned everything it was great! It’s a cool gadget and I give it a full 5 stars with no complaints.
Sign owner
A pretty good variety of graphics to change your LED sign. Works as it should, and it’s updated with new graphics over time.
LED mask maker
Works great to control the RGB LED display I put into a mask. Creating my own animations is awesome and I enjoy it a lot.
Sign owner
Giving it 5 stars because the app does what it should and the light looks great.
Hobbyist
Once I learned everything it was great! It’s a cool gadget and I give it a full 5 stars with no complaints.
Sign owner
A pretty good variety of graphics to change your LED sign. Works as it should, and it’s updated with new graphics over time.
LED mask maker
Works great to control the RGB LED display I put into a mask. Creating my own animations is awesome and I enjoy it a lot.
DIY creator
Making your own stuff takes a little work, but it’s fun. Other than that, I absolutely love it!
LED mask maker
Pretty easy to sync my mask, and it’s a good app that keeps getting better with updates.
Rideshare driver
Good app — does what it needs to. I use it while driving and it’s become part of my daily routine.
Sign owner
Good app. The variety of effects keeps my sign looking fresh.
DIY creator
Making your own stuff takes a little work, but it’s fun. Other than that, I absolutely love it!
LED mask maker
Pretty easy to sync my mask, and it’s a good app that keeps getting better with updates.
Rideshare driver
Good app — does what it needs to. I use it while driving and it’s become part of my daily routine.
Sign owner
Good app. The variety of effects keeps my sign looking fresh.
DIY creator
Making your own stuff takes a little work, but it’s fun. Other than that, I absolutely love it!
LED mask maker
Pretty easy to sync my mask, and it’s a good app that keeps getting better with updates.
Rideshare driver
Good app — does what it needs to. I use it while driving and it’s become part of my daily routine.
Sign owner
Good app. The variety of effects keeps my sign looking fresh.
DIY creator
Making your own stuff takes a little work, but it’s fun. Other than that, I absolutely love it!
LED mask maker
Pretty easy to sync my mask, and it’s a good app that keeps getting better with updates.
Rideshare driver
Good app — does what it needs to. I use it while driving and it’s become part of my daily routine.
Sign owner
Good app. The variety of effects keeps my sign looking fresh.
Reviews are from real users on the App Store and Google Play. Names are shown localized and avatars are illustrative.
Everything you need to know about the CoolLED1248 app.
CoolLED1248 AppLight up your sign today
Download the free CoolLED1248 app and send your first message in under a minute.
Free • iOS & Android • No account needed
