{"product_id":"8mm-mini-photocell-light-sensor-switch-auto-on-off-dc-3-24v","title":"8mm Photocell Light Sensor Switch Auto On\/Off DC 3–24V Module","description":"\n\u003ch2\u003e8mm Mini Photocell Light Sensor Switch – Automatic On\/Off for Energy-Efficient Lighting\u003c\/h2\u003e\n\u003cp\u003eTake control of your lighting automatically with this compact \u003cstrong\u003e8mm Mini Light Sensor Switch Module\u003c\/strong\u003e. Designed for DIY enthusiasts, home automators, and electronics hobbyists, this photocell switch intelligently turns lights on or off based on ambient light levels — no timers, no manual switching, no wasted energy.\u003c\/p\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eThis smart sensor module offers two selectable working modes to suit your setup:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNight Mode:\u003c\/strong\u003e Light activates automatically when it gets dark and turns off during daylight hours — perfect for basement stairwells, utility rooms, pathway lighting, and security lights.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDay Mode:\u003c\/strong\u003e Light activates when ambient light is detected and switches off at night — ideal for display lighting or daytime indicator applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e DC 3V – 24V (compatible with 3V, 3.7V, 5V, 12V, 24V systems)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Current:\u003c\/strong\u003e 2A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule Dimensions:\u003c\/strong\u003e 28mm × 8mm × 4mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable plastic housing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEU LVD Compliant:\u003c\/strong\u003e Low voltage (below 50V AC or 75V DC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × Light Sensor Switch Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eUltra-compact 8mm design\u003c\/strong\u003e — fits easily into tight spaces and custom enclosures\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eWide voltage range\u003c\/strong\u003e — works with most DC systems from 3V to 24V\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eEnergy-saving automation\u003c\/strong\u003e — eliminates lights left on unnecessarily\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eDual working modes\u003c\/strong\u003e — versatile for day or night activation\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eEasy to integrate\u003c\/strong\u003e — ideal for Arduino, LED strip, and low-voltage lighting projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGreat For\u003c\/h3\u003e\n\u003cp\u003eBasement lights, utility room lighting, garden path LEDs, cabinet lighting, aquarium lighting schedules, DIY smart home projects, solar-powered systems, and any low-voltage automatic lighting application.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eExplore More DIY Components\u003c\/h3\u003e\n\u003cp\u003eLooking to expand your build? Check out our \u003ca href=\"\/products\/stainless-steel-cord-end-caps-with-loop-jewelry-making-6pcs\"\u003eStainless Steel Cord End Caps with Loop – Jewelry Findings\u003c\/a\u003e for finishing touches on wire and cord projects, or browse our \u003ca href=\"\/products\/metal-q-ring-spring-clasps-gold-silver-plated-jewelry-connectors\"\u003eMetal Q Ring Spring Clasps – Gold \u0026amp; Silver Plated\u003c\/a\u003e for versatile connectors.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage systems is this photocell light sensor switch compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This mini light sensor switch module supports a wide DC operating voltage range of 3V to 24V, including 3V, 3.7V, 5V, 12V, and 24V systems. This makes it highly versatile for use with Arduino boards, LED strips, battery packs, and other low-voltage DC lighting setups.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this sensor switch for outdoor or basement lighting automation?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The photocell switch is ideal for basement stairwells, utility rooms, garden path lights, and outdoor low-voltage lighting. In Night Mode, it automatically turns lights on at dusk and off at dawn, making it a set-and-forget energy-saving solution.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I switch between Night Mode and Day Mode?\u003c\/h4\u003e\n\u003cp\u003eA: The module supports two working modes — Night Mode (light activates in darkness) and Day Mode (light activates in ambient light). Switching between modes is done via the onboard configuration on the module. Please refer to the included documentation or the product wiring diagram for setup instructions.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum load this sensor switch can handle?\u003c\/h4\u003e\n\u003cp\u003eA: The module supports a maximum current of 2A, making it suitable for LED lighting and other low-power DC loads within the 3V–24V operating range. Ensure your connected load does not exceed this rating.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage systems is this photocell light sensor switch compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This mini light sensor switch module supports a wide DC operating voltage range of 3V to 24V, including 3V, 3.7V, 5V, 12V, and 24V systems. This makes it highly versatile for use with Arduino boards, LED strips, battery packs, and other low-voltage DC lighting setups.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this sensor switch for outdoor or basement lighting automation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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