{"product_id":"focusable-ir-laser-diode-module-808nm-850nm-pwm-dot-head","title":"Focusable IR Laser Diode Module 808nm 850nm PWM | Elubor","description":"\n\u003ch2\u003eElubor Focusable Infrared Laser Diode Module — 808nm \/ 850nm with PWM Control\u003c\/h2\u003e\n\u003cp\u003eTake precise control of near-infrared laser output with this compact, adjustable IR laser diode module from \u003cstrong\u003eElubor\u003c\/strong\u003e. Available in 808nm (500mW) and 850nm (1W) configurations, this mini metal-body module delivers a focused dot beam with PWM-based power and switch control — ideal for professional stage setups, sensing applications, optical experiments, and DIY electronics projects.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWavelengths:\u003c\/strong\u003e 808nm \/ 850nm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e 808nm – 500mW  |  850nm – 1W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 12V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePWM Signal:\u003c\/strong\u003e 0–12V, frequency \u0026lt;18kHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLaser Shape:\u003c\/strong\u003e Dot (rectangular to oval — not a perfectly round dot)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFocusable:\u003c\/strong\u003e Yes — adjustable focus head\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Size:\u003c\/strong\u003e 33 × 70 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal (Black)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e AC adapter (12V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBatteries Required:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 850M-3370\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWiring \u0026amp; Interface\u003c\/h3\u003e\n\u003cp\u003eThe laser module features a 4-pin wiring interface for straightforward integration:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRed wire:\u003c\/strong\u003e 12V+ power supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYellow wire:\u003c\/strong\u003e PWM+ signal input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlack wire:\u003c\/strong\u003e Power supply GND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhite wire:\u003c\/strong\u003e Signal GND\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe power supply ground and signal ground are shared. For basic operation without PWM control, simply connect the red wire to 12V+ and the black wire to GND — the module will emit continuously. The PWM signal input is only needed when you want to switch the laser on\/off or modulate its output power programmatically.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This IR Laser Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eCompact Mini Design\u003c\/strong\u003e — Easy to mount and integrate into tight enclosures or rigs\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eAdjustable Focus\u003c\/strong\u003e — Dial in your beam precisely for your specific working distance\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003ePWM Compatible\u003c\/strong\u003e — Seamlessly integrate with microcontrollers, PLCs, or dedicated PWM drivers\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eDurable Metal Body\u003c\/strong\u003e — Solid construction for reliable, long-term use\u003c\/li\u003e\n  \u003cli\u003e✔ \u003cstrong\u003eVersatile Wavelength Options\u003c\/strong\u003e — 808nm or 850nm to match your optical or sensing requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 808nm \/ 850nm Infrared IR Laser Diode Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e⚠️ \u003cstrong\u003eLaser Safety Notice:\u003c\/strong\u003e This module emits invisible infrared laser radiation. Always follow proper laser safety protocols. Never point the beam at people or animals. Use appropriate IR-rated safety eyewear when operating. Refer to CPSC Radiation-Emitting Products Safety Guidelines for safe handling of laser-emitting devices.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Can I use this IR laser diode module without a PWM signal?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Simply connect the red wire to a 12V+ power supply and the black wire to GND. The module will emit laser light continuously without any PWM signal connected. The PWM input (yellow and white wires) is only required if you want to control the laser's on\/off state or adjust its output power dynamically.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the 808nm and 850nm variants of this module?\u003c\/h4\u003e\n\u003cp\u003eA: Both wavelengths are near-infrared and invisible to the naked eye. The 808nm variant outputs 500mW, while the 850nm variant outputs a higher power of 1W. Your choice depends on your specific application — 808nm is commonly used in optical pumping and sensing, while 850nm is widely used in short-range optical communication, night-vision illumination, and proximity sensing systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does \"focusable\" mean for this laser module?\u003c\/h4\u003e\n\u003cp\u003eA: The module features an adjustable focus head that allows you to mechanically tune the collimation of the output beam for your specific working distance. This lets you achieve a tighter or broader dot depending on your application requirements.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What PWM frequency range does this module support?\u003c\/h4\u003e\n\u003cp\u003eA: This laser module supports a PWM signal of 0–12V with a frequency below 18kHz. It is compatible with most standard microcontroller PWM outputs (such as Arduino, Raspberry Pi, or dedicated PWM drivers) as long as the signal voltage and frequency remain within these limits.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is protective eyewear needed when using this module?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This module emits invisible infrared laser radiation at power levels that can cause serious eye injury. Always use appropriate laser safety eyewear rated for the 808nm or 850nm wavelength range when operating or working in proximity to the beam.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Can I use this IR laser diode module without a PWM signal?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Simply connect the red wire to a 12V+ power supply and the black wire to GND. The module will emit laser light continuously without any PWM signal connected. The PWM input (yellow and white wires) is only required if you want to control the laser's on\/off state or adjust its output power dynamically.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the 808nm and 850nm variants of this module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both wavelengths are near-infrared and invisible to the naked eye. The 808nm variant outputs 500mW, while the 850nm variant outputs a higher power of 1W. Your choice depends on your specific application — 808nm is commonly used in optical pumping and sensing, while 850nm is widely used in short-range optical communication, night-vision illumination, and proximity sensing systems.\"}}, {\"@type\": \"Question\", \"name\": \"What does \\\"focusable\\\" mean for this laser module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The module features an adjustable focus head that allows you to mechanically tune the collimation of the output beam for your specific working distance. This lets you achieve a tighter or broader dot depending on your application requirements.\"}}, {\"@type\": \"Question\", \"name\": \"What PWM frequency range does this module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This laser module supports a PWM signal of 0–12V with a frequency below 18kHz. It is compatible with most standard microcontroller PWM outputs (such as Arduino, Raspberry Pi, or dedicated PWM drivers) as long as the signal voltage and frequency remain within these limits.\"}}, {\"@type\": \"Question\", \"name\": \"Is protective eyewear needed when using this module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. This module emits invisible infrared laser radiation at power levels that can cause serious eye injury. Always use appropriate laser safety eyewear rated for the 808nm or 850nm wavelength range when operating or working in proximity to the beam.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Focusable IR Laser Diode Module 808nm 850nm PWM | Elubor\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/focusable-ir-laser-diode-module-808nm-850nm-pwm-dot-head\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"808nm 1w \/ UK Plug","offer_id":48743367704768,"sku":"14:200008882#808nm 1w;200009209:201447607","price":147.99,"currency_code":"USD","in_stock":true},{"title":"808nm 500mw \/ EU Plug","offer_id":48743367737536,"sku":"14:200008910#808nm 500mw;200009209:201447604","price":147.99,"currency_code":"USD","in_stock":true},{"title":"808nm 1w \/ US Plug","offer_id":48743367770304,"sku":"14:200008882#808nm 1w;200009209:201447605","price":147.99,"currency_code":"USD","in_stock":true},{"title":"808nm 1w \/ EU Plug","offer_id":48743367803072,"sku":"14:200008882#808nm 1w;200009209:201447604","price":147.99,"currency_code":"USD","in_stock":true},{"title":"850nm 1W \/ UK Plug","offer_id":48743367835840,"sku":"14:200008881#850nm 1W;200009209:201447607","price":147.99,"currency_code":"USD","in_stock":true},{"title":"850nm 1W \/ EU Plug","offer_id":48743367868608,"sku":"14:200008881#850nm 1W;200009209:201447604","price":147.99,"currency_code":"USD","in_stock":true},{"title":"850nm 1W \/ US Plug","offer_id":48743367901376,"sku":"14:200008881#850nm 1W;200009209:201447605","price":147.99,"currency_code":"USD","in_stock":true},{"title":"808nm 500mw \/ US Plug","offer_id":48743367934144,"sku":"14:200008910#808nm 500mw;200009209:201447605","price":147.99,"currency_code":"USD","in_stock":true},{"title":"808nm 500mw \/ UK Plug","offer_id":48743367966912,"sku":"14:200008910#808nm 500mw;200009209:201447607","price":147.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S9db9c0457f94480faaeb1d5295f5cc398.webp?v=1786147311","url":"https:\/\/vueselect.com\/products\/focusable-ir-laser-diode-module-808nm-850nm-pwm-dot-head","provider":"Vue","version":"1.0","type":"link"}