Digital (SPI) White Running Light LED Sets – Frequently Asked Questions (FAQ)

With a traditional LED strip, the entire length lights up all at once. The digital (SPI) strip contains tiny controller chips that enable sections to light up independently from one another. This creates a striking chasing light effect, where the light appears to race along the wall or staircase.

All our white SPI sets operate at 24V. This is advantageous because the voltage drop is smaller compared to 12V systems. In practice, this means that even at lengths up to 10 meters, the brightness remains more even from the start to the end of the strip, and the more distant sections will fade less. Since these are LED strips with 10 Watts per meter, which for white light is not merely decorative but can even provide a primary lighting source, the power transmission along the strip is more favorable, making installation simpler because larger systems require fewer connection points.

It’s important to know: our 24V digital strip can be cut every 15 LEDs (one pixel group). Design tip:

• Since each cuttable unit is longer than in typical strips, it’s wise to calculate lengths in advance, especially at corners or precise endpoints. If the corner point does not fall exactly on the cutting spot of the 15-LED unit, a simple corner element cannot be used when turning the corner. If hidden in a larger cavity, for example above a drywall cornice, there might be an option for a gentler, non-cut turn; however, in a tighter LED profile, the strip can only be bent along its path by breaking the strip, which is extremely risky because it can damage the solder joints on the LED strip. This is especially critical if the break happens at the controller IC on the strip. Therefore, directional bending is not recommended unless you have an LED profile with sufficient internal depth to allow for a gentler curve. So, you need to cut the tape at the marked location. If you cut it shorter, you can comfortably turn it at the corner by soldering a wire. However, in that case, the LED point at the corner will be missing, resulting in a darker area there—usually a disturbing and unacceptable solution. It’s better to cut the tape longer and tuck the excess 5-10 LEDs at the end of the LED profile into the drywall cavity, making the overhang invisible and preventing darkness in the corner. If the LED strip wasn’t installed using drywall boxing, gently bend the overhanging part of the strip behind the back of the LED aluminum profile at its end. First, slip on a black heat shrink tube to prevent the light from shining through. Yes, these solutions do come with a few drawbacks. Because when we slowly run the light and see it stepping in increments of 15, at the corner we will notice that the step isn’t 15 but a shorter one. In everyday use, this is a less troublesome solution, since we usually shift the light at a speed that makes this less noticeable!
• The best approach is to create only straight sections or a design where the strip is bent only on its flat side, as it can be easily bent flat anywhere. Such design solutions include when the strip runs vertically from the wall up to the ceiling, or if we definitely want to illuminate the ceiling, then the strip should be attached to the wall at the corners instead of the ceiling. This way, the strip bends smoothly across the wall’s flat surface from wall to wall, rather than along an edge.

Unlike cheap controllers, the Miboxer SPI controller offers more than just fixed programs. For this type of controller, it provides 20 different customizable light effects. Generally, the speed and brightness of the light run are possible even with simpler controllers, but with this type, the added advantage is that the width of the light run can also be adjusted. (Of course, this does not make sense for every type of light show.) The width of the light run refers to the number of pixels in width, meaning whether a short light point runs through at a time, or a wider light beam. This allows the system to be perfectly tailored to the size of the room. This is important because in a smaller room, a shorter section with a slower, narrower light beam might look better, whereas in a longer system this would be too plain, making a faster and wider beam more visually appealing.

• 3000 Kelvin (Warm white): Cozy, relaxing light with a warm yellow hue. Recommended for the bedroom and also for the living room if the lighting is primarily used in the evenings, as it creates a cozy, intimate atmosphere.
• 4000 Kelvin (Neutral white): Commonly known as natural white. I believe 'neutral white' is the most fitting term. It provides a modern lighting effect. It is the most recommended choice for kitchens, hallways, and offices. Firstly, it is ideal when used for so-called dual-purpose lighting—meaning the same light source illuminates daytime activities (such as work) and also creates a relaxing ambiance in the evening. It’s also a great choice when you have no idea whether you prefer cool or warm light.
• 6400K (Cool white): A bluish-white, very bright light with a modern effect. For spaces where maximum visibility and contrast are the goal. In fact, this is the closest of the three to the midday sunlight, making it the ideal lighting for tasks that demand focus and sustained alertness.

This is just a brief explanation based on our activities and biorhythm, without even touching on the harmonious color schemes in interior design. You can read more about it in detail HERE.

These sets are for indoor use (IP20), so we do not recommend them for humid bathrooms or outdoor areas directly. For a long lifespan, it is definitely best to glue them into an aluminum profile, as the profile ensures heat dissipation for the LEDs and also provides mechanical protection. In visible places, you can also achieve a more attractive look by mounting them in LED profiles.

The options depend on the types of controllers included in the LED strip set:

1. Every SPI LED strip set allows wiring in a way that keeps the traditional wall switch and connects the set to it. At that moment, when we turn on the light, the lighting effect or mode we set with the remote control will begin. The drawback is that when turning on, the starting light effect plays out, but when turning off, the shutdown light effect cannot run because the power is cut off immediately, so the light simply goes out.
2. Each SPI LED strip set includes a remote control. This is essential because it lets us set what our SPI LED strip should do. Additional remote controls can be purchased or paired with certain types of controllers. The greatest freedom and variety are provided by Miboxer remote controls, especially when you choose a set containing a Miboxer SPI controller.
3. If you select a set with a Miboxer SPI controller, you can operate the SPI running light using any number of built-in traditional wall switches with pulse switching (e.g., spring doorbell switch). This solution enables turning the lights on and off, as well as switching between different light effects. The advantage over the wall switch solution mentioned in the first paragraph, prior to the system, is that with this solution, the switch-off light sequence still plays out because with the impulse switch, we do not cut power to our system but rather send a switch-off command.
4. With smart systems and mobile phone apps, we can control our running light system as if the phone’s screen were our remote control. For this, you need to either choose a controller set integrated with Wi-Fi or a controller to which you can connect a Wi-Fi gateway. For example, if you purchase a Miboxer WiFi WL-Box2 gateway for the Miboxer SPI controller without WiFi and install the Tuya app on your phone, you can control your LED strip system via your mobile device. Furthermore, if you use smart speakers such as Amazon Alexa or Google Assistant in your home, you can also control the running light lighting by voice command.

By default, every SPI controller lets you set how many pixels it controls (the number of controller chips on the strip — not the number of LEDs). If more pixels are set, you might not even notice it; at most, you may sense that the shutdown light effect seems to start with a delay. (It appears delayed because, when unset, it begins turning off non-existent LEDs. If the pixel count is shorter, the strip won’t light visibly from that point, as if it were defective. This can happen even if it was fine initially—for example, when experimenting with the remote control, you might have accidentally reduced the pixel count without noticing. Check the remote control’s manual for the method to reset the pixel count to the actual length. Of course, it’s also possible that the strip is broken. So, when the above setting doesn’t work, this is what we should consider: it’s not the entire non-lighting LED strip that’s faulty, but only the first unit. In the case of these white SPI LED strip sets, that means the first 15 LEDs. There is one controller chip for every 15 LEDs, so the first non-lighting block of 15 must be cut out of the strip. The next unit will light up. This is because this is a 3-wire SPI LED strip. That means if a controller chip on the strip fails, it won’t pass the control signal further down the strip. Four-wire strips are different; they effectively bypass the faulty unit, so the sections beyond the damaged part will continue to work.

The SPI LED strip is a digital LED strip, while the traditional LED strip is analog. The analog LED strip is controlled by a PWM signal applied to its power supply. The digital LED strip receives pure DC power and instructions through one or two data lines about how to light up. Essentially, the controller chips on the strip are addressed by the central controller, which sends lighting codes to their addresses, So, data communication occurs along the LED strip. The central controller assigns addresses sequentially to each chip on the strip. This means if we simply branch the strip, the same address would be given to two or more chips, which is impossible. Therefore, branching can only be done using an SPI signal splitter, sometimes called a signal amplifier. Some controllers come with 2 or 4 signal outputs, but if you want more branches so the light show starts simultaneously on all of them, or if you want a branch to split off at a specific section, then a signal splitter must be inserted into the strip.