{"product_id":"sp901e-spi-amplifier","title":"SP901E SPI Amplifier","description":"\u003csection class=\"spec-page\"\u003e\u003c!-- FULL-WIDTH CAROUSEL (Top) --\u003e\n\u003csection class=\"spec-carousel\"\u003e\n\u003cdiv id=\"cobCarousel\" class=\"spec-carousel-track\"\u003e\n\u003cdiv class=\"spec-carousel-slide\"\u003e\u003cimg loading=\"eager\" alt=\"C\u0026amp;C Lighting SP901E SPI signal amplifier repeater for addressable LED pixel strips DC5-24V\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0986\/0548\/files\/e9262129-f551-45aa-8e49-a7b5b59812ea.png?v=1785612124\"\u003e\u003c\/div\u003e\n\u003c!-- Add more images like this when you have them --\u003e\n\u003c\/div\u003e\n\u003cbutton type=\"button\" class=\"spec-carousel-btn prev\"\u003e‹\u003c\/button\u003e \u003cbutton type=\"button\" class=\"spec-carousel-btn next\"\u003e›\u003c\/button\u003e\n\u003cdiv class=\"spec-carousel-dots\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cscript\u003e\n(function () {\n  const carousel = document.querySelector(\".spec-carousel\");\n  if (!carousel) return;\n  const track = carousel.querySelector(\".spec-carousel-track\");\n  const slides = Array.from(carousel.querySelectorAll(\".spec-carousel-slide\"));\n  const prevBtn = carousel.querySelector(\"[data-carousel-prev]\");\n  const nextBtn = carousel.querySelector(\"[data-carousel-next]\");\n  const dotsWrap = carousel.querySelector(\"[data-carousel-dots]\");\n  if (!track || slides.length === 0) return;\n  let currentIndex = 0;\n  let autoplayTimer = null;\n  const AUTOPLAY_MS = 5000;\n  function slideWidth() {\n    return track.getBoundingClientRect().width;\n  }\n  function clampIndex(i) {\n    if (i \u003c 0) return 0;\n    if (i \u003e slides.length - 1) return slides.length - 1;\n    return i;\n  }\n  function scrollToIndex(i, opts) {\n    currentIndex = clampIndex(i);\n    track.scrollTo({\n      left: currentIndex * slideWidth(),\n      behavior: (opts \u0026\u0026 opts.instant) ? \"auto\" : \"smooth\"\n    });\n    updateDots();\n    updateButtons();\n  }\n  function updateButtons() {\n    if (!prevBtn || !nextBtn) return;\n    prevBtn.disabled = currentIndex === 0;\n    nextBtn.disabled = currentIndex === slides.length - 1;\n    prevBtn.style.opacity = prevBtn.disabled ? \"0.45\" : \"1\";\n    nextBtn.style.opacity = nextBtn.disabled ? \"0.45\" : \"1\";\n    prevBtn.style.pointerEvents = prevBtn.disabled ? \"none\" : \"auto\";\n    nextBtn.style.pointerEvents = nextBtn.disabled ? \"none\" : \"auto\";\n  }\n  function buildDots() {\n    if (!dotsWrap) return;\n    dotsWrap.innerHTML = \"\";\n    slides.forEach((_, i) =\u003e {\n      const btn = document.createElement(\"button\");\n      btn.type = \"button\";\n      btn.className = \"spec-carousel-dot\";\n      btn.setAttribute(\"aria-label\", \"Go to slide \" + (i + 1));\n      btn.addEventListener(\"click\", () =\u003e scrollToIndex(i));\n      dotsWrap.appendChild(btn);\n    });\n    updateDots();\n  }\n  function updateDots() {\n    if (!dotsWrap) return;\n    const dots = Array.from(dotsWrap.querySelectorAll(\".spec-carousel-dot\"));\n    dots.forEach((d, i) =\u003e {\n      const active = i === currentIndex;\n      d.setAttribute(\"aria-current\", active ? \"true\" : \"false\");\n    });\n  }\n  function syncIndexFromScroll() {\n    const w = slideWidth();\n    const i = Math.round(track.scrollLeft \/ w);\n    const next = clampIndex(i);\n    if (next !== currentIndex) {\n      currentIndex = next;\n      updateDots();\n      updateButtons();\n    }\n  }\n  function startAutoplay() {\n    stopAutoplay();\n    autoplayTimer = window.setInterval(() =\u003e {\n      const next = (currentIndex + 1) % slides.length;\n      scrollToIndex(next);\n    }, AUTOPLAY_MS);\n  }\n  function stopAutoplay() {\n    if (autoplayTimer) window.clearInterval(autoplayTimer);\n    autoplayTimer = null;\n  }\n  if (prevBtn) prevBtn.addEventListener(\"click\", () =\u003e scrollToIndex(currentIndex - 1));\n  if (nextBtn) nextBtn.addEventListener(\"click\", () =\u003e scrollToIndex(currentIndex + 1));\n  track.addEventListener(\"scroll\", () =\u003e {\n    window.requestAnimationFrame(syncIndexFromScroll);\n  });\n  carousel.addEventListener(\"mouseenter\", stopAutoplay);\n  carousel.addEventListener(\"mouseleave\", startAutoplay);\n  carousel.addEventListener(\"focusin\", stopAutoplay);\n  carousel.addEventListener(\"focusout\", startAutoplay);\n  track.addEventListener(\"keydown\", (e) =\u003e {\n    if (e.key === \"ArrowLeft\") scrollToIndex(currentIndex - 1);\n    if (e.key === \"ArrowRight\") scrollToIndex(currentIndex + 1);\n  });\n  window.addEventListener(\"resize\", () =\u003e {\n    scrollToIndex(currentIndex, { instant: true });\n  });\n  buildDots();\n  scrollToIndex(0, { instant: true });\n  startAutoplay();\n})();\n\u003c\/script\u003e \u003c!-- HERO --\u003e\n\u003csection class=\"spec-hero\"\u003e\n\u003cdiv style=\"text-align: start;\" class=\"spec-hero-media\"\u003e\n\u003cbr\u003e\u003cimg alt=\"C\u0026amp;C Lighting SP901E signal amplifier 4 channel SPI repeater with signal in and signal out terminals\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0986\/0548\/files\/Product_Photo_Dimension_Guide_5_975cf1a4-51de-43aa-bca8-02dfd602a6bd.png?v=1785612124\"\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-hero-content\"\u003e\n\u003ch4 class=\"spec-title\"\u003eSP901E SPI Amplifier\u003c\/h4\u003e\n\u003cp class=\"spec-tagline\"\u003eThe SP901E SPI Amplifier is an SPI signal repeater built to extend addressable LED pixel data over longer cable runs. It takes a single data signal from a programmable LED controller and simultaneously outputs four or eight identical channels, each capable of driving the same number of pixels as the source controller. It is used whenever signal cable runs exceed roughly 5 meters or when one controller needs to drive multiple parallel strip runs in sync.\u003c\/p\u003e\n\u003cdiv class=\"spec-stats\"\u003e\n\u003cspan\u003eDC5-24V Input\u003c\/span\u003e \u003cspan\u003e5V TTL Signal\u003c\/span\u003e \u003cspan\u003e4 or 8 Channel Output\u003c\/span\u003e \u003cspan\u003e3mA-6mA Working Current\u003c\/span\u003e \u003cspan\u003eUnder 1W Consumption\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0986\/0548\/files\/SP901E_SPI_Amplifier.pdf?v=1785612124\" class=\"spec-btn\" rel=\"noopener\" title=\"SP901E SPI Amplifier Spec Sheet\" target=\"_blank\"\u003e Download Spec Sheet \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- SUPPORT VISUAL --\u003e\u003c!-- FEATURES --\u003e\n\u003csection class=\"spec-features\"\u003e\n\u003ch2 class=\"spec-section-title\"\u003eHighlighted Features\u003c\/h2\u003e\n\u003cdiv class=\"spec-feature-grid\"\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eFunction\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eSPI signal amplifier and repeater for addressable LED pixel strips and dream color LED systems.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eSignal Input\/Output\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eAccepts one 5V TTL input signal and duplicates it across four or eight output channels simultaneously.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eCompatibility\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eCompatible with WS2812B, WS2811, SK6812, SK6812-RGBW, SM16703, WS2813, WS2815, CS8812, AL2815, WS2801, APA102, SK9822, and UCS1903 IC types.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eSignal Duplication\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eEach output channel drives the same pixel count as the source controller, enabling synchronized multi-strip control.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eCascading\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eMultiple units can be cascaded together for synchronous operation across small and medium lighting projects.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eVoltage Handling\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eDoes not regulate output voltage, so the power supply voltage must match the working voltage of the connected LED strips.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eUse Case\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eCommonly placed after signal loss points or used to split one signal source into multiple identical strip runs.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-feature\"\u003e\n\u003cdiv class=\"spec-feature-label\"\u003eWorking Temperature\u003c\/div\u003e\n\u003cdiv class=\"spec-feature-text\"\u003eRated for -20C to 60C operating environments.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e\n\u003cstyle\u003e\n  .spec-page{\n    max-width: 1180px;\n    margin: 0 auto;\n    padding: 40px 16px 24px;\n  }\n  \/* HERO *\/\n  .spec-hero{\n    display: grid;\n    grid-template-columns: 1.05fr 0.95fr;\n    gap: 56px;\n    align-items: center;\n  }\n  .spec-hero-media img{\n    width: 100%;\n    height: auto;\n    display: block;\n    border-radius: 14px;\n  }\n  .spec-title{\n    margin: 0 0 10px;\n    font-size: clamp(28px, 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