GOTUS Light Signs for Car,Programmable LED Sign,Flexible Digital Sign,Control by Bluetooth APP, DIY Design Animations,Text

Very easy to install and shows up really well even in daylight. Really great after dark. I spelled out UBER in purple letters and it looks great.

Easy to install the app

I got this for a school classroom and the ease of use and how it looks is a great fit for it and the students - we can easily and quickly change the text on the fly using the app and the students love it. Price is a little high but well worth it in my opinion.

I actually really like this! I bought their smallest one. Though it's small, it gets the job done, the quality seems great. The entire display is covered by a clear rubbery material, which seems durable enough. It is flexible. You'll need to download their app through the QR code, so keep the box intact. If you lose it, search COOLLED1248 in your appstore. It asks location permission to use "your phones Bluetooth required by google play," but you can remove permissions once you've programmed the image/animation you want, it'll remember when turned back on, if you don't trust them. Grant permission again if you want to use the app. To turn/toggle on oroff hold the button for about 3 seconds, you can also toggle off in the app, labeled "light". I plan to disconnect it and put it away when not used anyways, I'm using double sided velcro instead of their double sided tape provided, can't be too careful with sun damage! You can display up to 4 characters max, or more if you allow scrolling/animations. It has 7 colors you can use, red, pink, yellow, cyan, green, blue, and white. You can be creative and animate your own images/characters in the app, though doing so will be VERY tedious since you cannot pan the pixels on the canvas, but copying the previous image is allowed. My video shows examples of what you can display, Typing UBEReats, lyft, 2 of many preprogrammed animations, a simple one I made, how to turn on/off, how to disconnect the ribbon cable (press down on tiny lever), and how it looks outside, you can scroll other directions too, but I didn't show. If it's upside down, go into app settings and choose MIRROR. You can also change brightness and speed using the sliders.

Years ago I bought my GOTUS LED Sign for use while driving. I still use it almost everyday to politely tell tailgaters that they don't intimidate me.My primary message is; Caution symbol "Old person driving! I'm not in any rush" Caution symbol.Once they see the sign they usually pass me or back off when passing is not an option.You can control it by voice commands!!! It's easy for most to do but it is to detailed to provide here. Helpful Phil's "iOS Camera Photo Voice Command" YouTube can help you with this.Instead of using Phil's paper overlay method, I made it easier by wrapping my phone with one layer of Saran/Food Service plastic film. I researched and developed my own hands free capability by using my iPhone's Accessibility feature. I found that it was easy to create numerous hands free messages after creating and testing my first message.On our new Rav4, the LED sign assembly is mounted on the center, back seat, passenger's headrest and shows any desired message out the rear window.Installation Steps:1. I cut a 1/8th inch thick plastic backing to the size of my 15"x4" LED sign. For the plastic backing I cut to size and applied strong double sided adhesive tape to 6 metal strips and then attached 2 strips at the top, 2 strips at the bottom, and 1 strip on each end of the plastic backing.2. These metal strips were cut to the size of my 6 Amazon purchased 60 x 10 x 3 mm Strong Neodymium Bar Magnets.3. For the LED sign: I cut to size applied strong double sided adhesive tape to each of the 6 bar magnets. Next I attached 2 magnets at the top, 2 magnets at the bottom, and 1 magnet on each end of the LED sign.4. Next I attached the LED sign, with attached magnets, to the plastic backing with metal strips.5. Next, I used bungie balls (also available on Amazon) to mount the assembly to the center, back seat, passenger's headrest.6. Finally, I ran my LED sign power coord to a safe and easy to reach location on my center console. I usually leave the sign powered on and return a blank message. If a different message is needed then I tell my iPhone to "Wake Up" then I tell my iPhone which message to show.Since I don't have the LED sign mounted on the rear window, this most likely prevents my being stopped for having an obstructed rear view. I also think that the dark interior of the my car increases the readability of my messages for tailgating drivers.