Dual Signal LED Strips
6 sub-categories

High-speed synchronization for professional pixel LED displays. At SuperLightingLED™, we provide premium dual-signal addressable LED strips featuring independent Data (DAT) and Clock (CLK) lines. Unlike breakpoint-resume LED strips that focus on backup data, this DAT+CLK architecture is engineered for ultra-high refresh rates and precise timing synchronization. IC-controlled LED strip lights with a CLK line effectively eliminate flickering and data transmission delays, making tnem the superior choice for high-speed dynamic effects and large-scale pixel mapping.
Most of our high-speed dual-signal (DAT + CLK) addressable LED strips, such as the SK9822, APA102, APA107/HD107/HD108, WS2801, and LPD8806, operate at 5V DC, while the older LPD6803 model operates at 12V DC. Notably, our WS2801 pixel modules can operate at either 12V or 24V.

SK9822 IC Programmable LED Strips
SK9822 is an RGBIC chip built into SMD5050 RGB LEDs. SK9822 is differentiated from SK6812, WS2812B, and WS2815 in that it has an SPI DATA signal wire as well as an additional CLOCK wire that allows for more precise control of each LED of the strip light. Our SK9822 LED strip has a full range of LED density options (30 60 72 144), waterproof IP rating options (IP20 IP65 IP67 IP68), and PCB color options (white black) to suit both indoor and outdoor addressable led strip lighting project needs.
If you're looking for a cost-effective alternative to APA102 strips, our SK9822 LED strips are engineered for that exact spot. They use the same 4-wire SPI protocol (positive, ground, data, and clock), which makes them a drop-in replacement in many projects. The core difference comes down to the chip's internal PWM (Pulse Width Modulation) frequency: SK9822 runs at 4.7kHz, while the genuine APA102 Programmable LED Strips run at a much higher 19kHz. For most visual applications like accent lighting, signage, or architectural highlights, you won't see a difference, but you'll notice the lower price.
SK9822 vs APA102 vs APA107 vs HD107 vs HD107s vs HD108
SK9822 Datasheet PDFSK9822 DATASHEET648 KB

APA102 Programmable LED Strips
APA102 is a 6-pin smart LED light control chip built into a 2020/5050 RGB SMD LED or 5050 white SMD LED, each LED can be individually controlled and programmed for brightness and color. LED strip and modular light panels controlled by APA102 IC chips have signal and clock lines, are capable of 19KHZ update rates and 30mHZ transmission rates, so the APA102 LED is virtually flicker-free.
APA102 vs WS2812 Series: APA102 has an additional clock line than WS2812B, allowing data to be transferred at a faster rate, with a smoother and more detailed LED effect. The clock line also allows APA102 to achieve precise timing synchronization, ensuring that both color and brightness changes of the LEDs are performed accurately. Thanks to the clock line, APA102 is somewhat more resistant to interference.
APA102 vs SK9822: APA102 and SK9822 are the same data+clock LED control type, but the way of updating data and global brightness control are different; APA102 updates data staggered, while SK9822 updates data at the same time, and the chip size of APA102 is bigger.
APA102C is a replacement for APA102 in order to reduce costs and meet market demand at a more competitive price. SUPERLIGHTINGLED APA102 and APA102C led strips are available in a variety of densities and waterproof options to meet the needs of engineering projects and DIY projects.
APA102 vs SK9822 vs APA107 vs HD107s vs HD108
Product spec sheets & downloads
Product spec sheets & downloads

APA107/HD107S Addressable LED Strips
APA107, HD107S, and HD108 all belong to the CLK+DAT control type. Typically, we think of APA107 (9 kHz PWM frequency, transmission rate 30MHZ) as an alternative to APA102C and SK9822 (~4.7 kHz PWM, transmission rate 30MHZ), HD107S (26+ kHz PWM frequency, transmission rate 40MHZ) as an upgrade to APA107 and APA102 (20+ kHz PWM, transmission rate 20-30MHZ), and HD108 (PWM frequency is up to 27 kHz, 40 MHZ data rate) as an upgrade to HD107S. Among all the addressable led strip IC chips, only HD108 supports 16-bit 65536 grayscale variations at present, the others are 8-bit 256 levels of grayscale.
HD108 LED has the fastest refresh rate, responds and updates LED status instantly, and with a 16-bit 65536 high-definition grayscale and a wider range of colors to provide richer, more realistic and detailed images and animated lighting effects. With optimal color matching and consistency across the entire HD108 LED strip or pixel matrix, and low forward voltage drop, HD108 strip is ideal for LED screens requiring the best animation and visual effects.
SK9822 vs APA102 vs APA107 vs HD107 vs HD107s vs HD108
Product spec sheets & downloads
Product spec sheets & downloads
Product spec sheets & downloads

WS2801 IC Programmable LED Strips
The WS2801 is an early-generation high-speed clock-line IC that is now gradually being replaced by IC models such as the SK9822 and APA107 in addressable LED strip lights, which feature smaller packages and higher refresh rates. However, because the WS2801 RGBIC chip uses a large, external SOP-14 package, it offers exceptional voltage tolerance and heat dissipation, extremely high immunity to interference, and excellent compatibility with the two-wire SPI protocol. As a result, it continues to provide a unique combination of value and irreplaceable engineering advantages in signage WS2801 pixel light sources and dot-matrix modular engineering lights.
WS2801 Datasheet PDFWS2801519 KB

LPD8806 IC Programmable LED Strips
Engineered for cross-referencing and maintaining older commercial lighting setups, our LPD8806 Addressable LED Strips provide exact hardware compatibility for older 2-wire SPI control systems. Utilizing a 7-bit (128-level grayscale) dual-data/clock timing structure, LPD8806 was once widely used in early pixel matrixes and custom stage chases. We maintain these specialty strips specifically to help engineers and facility managers repair damaged runs or replace aging tape lights in vintage installations without the heavy downtime and expense of reprogramming legacy master control units.
Recommended Upgrade for New Projects: For all new architectural or dynamic lighting builds, 2-LED/pixel LPD8806 (5V) is fully superseded by individually addressable SK9822 or APA102 (5V) for superior PWM refresh rates and smooth dimming, or WS2815 / GS8208 (12V) for modern dual-data signal redundancy (breakpoint resume) and long-run voltage stability.

LPD6803 IC Programmable LED Strips
Designed strictly for legacy maintenance, our LPD6803 Addressable LED Strips serve as direct replacements for older, first-generation 2-wire SPI dynamic lighting installations. As an early-stage 5-bit (32-level grayscale) IC architecture, LPD6803 is ideal for servicing existing architectural facades, vintage KTV chases, and legacy control networks that cannot be re-programmed or swapped out.
Recommended Upgrade for New Projects: For new installations requiring clock-driven stability, we strongly recommend replacing 12V LPD6803 RGBIC strip lights with 5V SK9822 or APA102 for true 8-bit (256-level) color depth and flicker-free 20kHz+ PWM performance, or WS2811 (12V or 24V) for high-efficiency, budget-friendly commercial dynamic runs.
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What is the difference between different types of dual signal addressable LED strip?
SK9822: DC5V individually addressable; built-in RGB IC; shared protocol with APA102; ~4.7 kHz PWM refresh frequency, transmission rate 30MHZ.
APA102: DC5V individually addressable; built-in IC; Single color/RGB optional; 20+ kHz PWM refresh frequency, transmission rate 20-30MHZ.
APA107: DC5V individually addressable; built-in RGB IC; 9 kHz PWM refresh frequency, transmission rate 30MHZ.
HD107s: the upgrade of APA107; DC5V individually addressable; built-in IC; Single color/RGB optional; 26+ kHz PWM refresh frequency, transmission rate 40MHZ; 5M/16.4 without voltage drop.
HD108: the top-notch; DC5V individually addressable; built-in RGB IC; 27 kHz PWM refresh frequency, transmission rate 40MHZ.
WS2801: DC5V individually addressable; built-in & external RGB IC; 2.5 kHz PWM refresh frequency; transmission rate 25MHZ.
LPD8806: DC5V; external RGB IC; 2LEDs cuttable; 4 kHz PWM refresh frequency; transmission rate 20MHZ.
LPD6803: DC12V; external RGB IC; 3LEDs cuttable; 1 kHz PWM refresh frequency; transmission rate 15MHZ.
What is a dual signal addressable LED strip?
Dual Signal LED Strips, is a 4-channel single clock line (CLK) and single signal line (DAT) LED driver control circuit and built-in & external IC architecture, the control protocol (SK9822 and APA102 can share the protocol), data transmission speed and PWM refresh frequency between the ICs in the series are different, but there are significantly improved compared to single signal addressable LED, and IC has an automatic signal detection function.
How do addressable LEDs work?
The IC uses advanced CMOS technology, internally integrated serial shift registers, cascade drive circuits and clock data regeneration circuits; LED strips to receive digital signal data from the addressable LED controller or Arduino LED controller, and the data is shifted into the serial shift register at the upper edge of the clock, after dumping, it is converted to multi-port parallel output through pulse width modulation, output 16 million dynamically color chasing addressable RGB modes and 256 gray scales adjustable, update the LED output color immediately after the first valid LED frame, the signal can be updated synchronously.
Dual Signal (Data + Clock) LED Strips FAQ
Standard single-data digital LEDs (like WS2812B) rely on strict internal timing, which can cause flickering or "glitches" if the signal is slightly delayed. A dedicated CLK (Clock) line synchronizes the data transmission, allowing the pixel LED strip to handle much higher data rates and faster frame updates without any visual artifacts.
Yes. In long pixel LED installations, single-data digital LED strips (WS2812B, etc.) often suffer from "cumulative timing errors," which lead to visible flickering or glitches. By adding a dedicated CLK line, the data transmission is hardware-synchronized. This ensures that every pixel receives the correct command at the exact same time, effectively eliminating flickering even in complex, large-scale pixel mapping projects.
Technically, both signals face resistance over long distances, but the CLK signal is more robust against timing jitter. While you still need to manage voltage drop with proper power injection, the dual-signal architecture provides a more stable timing environment for data over extended distances compared to asynchronous single-wire protocols.
For high-speed photography and cinematography, HD108 and HD107S are currently the highest-performance ICs on the market and are the professional-grade upgrades to APA102. APA102, SK9822, and APA107 remain the most common "super-fast" LEDs for POV (Persistence of Vision) displays. Legacy IC chips like WS2801, LPD8806, and LPD6803 were pioneers of dual-signal technology but are generally considered outdated for modern high-speed filming requirements.
No. For DAT+CLK dual-signal addressable LED strips to function, both the Data and Clock lines must be connected to their respective pins on your controller. If your controller only supports single-wire output, we recommend choosing our single-data or dual-data LED series instead to ensure proper operation.








