{"product_id":"405nm-violet-blue-laser-diode-module-dot-line-cross-5v-focusable","title":"405nm Violet Blue Laser Module | Dot Line Cross | 5V Focusable","description":"\n\u003ch2\u003e405nm Focusable Violet Blue Laser Diode Module — Dot, Line \u0026amp; Cross Patterns\u003c\/h2\u003e\n\u003cp\u003ePrecision meets versatility with this compact 405nm violet blue laser diode module. Whether you need a sharp dot, a crisp line, or a precise cross pattern, this focusable laser module delivers consistent, accurate output for alignment marking, industrial positioning, stage setups, and DIY projects. Available in 100mW, 200mW, and 300mW output options to match your specific application requirements.\u003c\/p\u003e\n\n\u003cp\u003eBuilt with a rugged aviation-grade aluminum alloy housing and fitted with a high-quality K9 glass lens, this module is engineered for durability and optical clarity. The adjustable focus mechanism lets you fine-tune the beam for your exact working distance, while the constant current driver board ensures stable, reliable performance.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWavelength:\u003c\/strong\u003e 405nm violet blue visible light output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Options:\u003c\/strong\u003e 100mW \/ 200mW \/ 300mW (select your preferred output)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBeam Patterns:\u003c\/strong\u003e Dot, Line, or Cross — optional at time of purchase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e DC 5V (5V adapter included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Current:\u003c\/strong\u003e 110mA – 210mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFocusable:\u003c\/strong\u003e Yes — adjustable focus with optical lens\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLens:\u003c\/strong\u003e K9 glass + wavy glass optics for beam precision\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing:\u003c\/strong\u003e Aviation aluminum alloy — compact \u0026amp; heat-resistant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e ±50°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Life:\u003c\/strong\u003e Up to 1,000 hours\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModule Size:\u003c\/strong\u003e ∅16mm × 68mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 1.2m DC power cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× 405nm Laser Diode Module (100mW \/ 200mW \/ 300mW)\u003c\/li\u003e\n  \u003cli\u003e1× 5V Power Adapter\u003c\/li\u003e\n  \u003cli\u003e1× Mounting Holder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlignment marking \u0026amp; positioning in industrial or workshop settings\u003c\/li\u003e\n  \u003cli\u003eStage lighting and DJ effect setups\u003c\/li\u003e\n  \u003cli\u003eLaser engraving machine positioning\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and maker projects\u003c\/li\u003e\n  \u003cli\u003eScientific and educational demonstrations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Laser Safety Notice:\u003c\/strong\u003e This module emits a 405nm violet blue laser beam. Never point the laser at eyes or skin. Always use appropriate laser safety eyewear when operating. Keep out of reach of children. For more information on laser safety, refer to the FDA's laser product safety guidance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What beam patterns does the 405nm laser diode module support?\u003c\/h4\u003e\n\u003cp\u003eA: This focusable laser module supports three beam patterns — Dot, Line, and Cross. You choose your preferred pattern at the time of purchase. Each pattern uses precision K9 glass and wavy glass optics for a sharp, well-defined output.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What power output options are available for this violet blue laser module?\u003c\/h4\u003e\n\u003cp\u003eA: The module is available in 100mW, 200mW, and 300mW output levels. Select the power level that best suits your application — lower power for fine alignment tasks and higher power for more demanding positioning or stage lighting uses.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What voltage does this laser diode module require, and is a power adapter included?\u003c\/h4\u003e\n\u003cp\u003eA: The module operates at DC 5V and draws between 110mA and 210mA depending on the selected power level. A 5V power adapter and mounting holder are included in the package, so you can get started right out of the box.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is the focus of this laser module adjustable?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The module features an adjustable focus mechanism, allowing you to fine-tune the beam sharpness and spread for your specific working distance. This makes it suitable for a wide range of alignment and marking applications.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What beam patterns does the 405nm laser diode module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This focusable laser module supports three beam patterns — Dot, Line, and Cross. You choose your preferred pattern at the time of purchase. Each pattern uses precision K9 glass and wavy glass optics for a sharp, well-defined output.\"}}, {\"@type\": \"Question\", \"name\": \"What power output options are available for this violet blue laser module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The module is available in 100mW, 200mW, and 300mW output levels. 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