{"product_id":"9mm-adjustable-focus-red-laser-diode-head-650nm-5mw-3v-dot-line-cross-module-for-arduino-leveling-pointer-diy-electronic-kit","title":"9mm Adjustable Focus Red Laser Diode Head 650nm 5mW 3V Dot Line Cross Module for Arduino Leveling Pointer DIY Electronic Kit","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMax. Forward Current\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e20mA\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMax. Forward Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e3V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMax. Reverse Current\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e0\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMax. Reverse Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e0\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eLaser Diode\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eVoltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e3V\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003ep{margin-block-start: 0; margin-block-end: 0}\u003c\/div\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eVersatile \u0026amp; Focusable! 9mm Adjustable Red Laser Head, Dot\/Line\/Cross Spot, 650nm 5mW, 3V Power, for Arduino, Leveling, DIY Creative Projects.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eKey Features \u0026amp; Benefits:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003e🔧 Precision Brass Focus, Twist to Change: Unique brass threaded housing allows fine focus adjustment like a lens, delivering sharp dot, line, or cross spots from near to far field.\u003cbr\u003e\u003cbr\u003e🔴 650nm High-Visibility Red, Stable \u0026amp; Long-Lasting: 5mW output at 650nm. Highly visible in daylight, excellent at night. \u0026gt;1000 hours typical lifespan. Low power, reliable.\u003cbr\u003e\u003cbr\u003e⚙️ Three Practical Spot Patterns: Choose from Dot (precise pointing), Line (leveling, marking), or Cross (center alignment) to suit measuring, layout, positioning, and educational needs.\u003cbr\u003e\u003cbr\u003e🔌 Plug \u0026amp; Play, Easy Integration: Pre-focused at factory with open pins. Simply provide a stable 3V DC supply (current-limiting resistor REQUIRED!). No complex optical alignment. Easily integrates into Arduino, Raspberry Pi, or your DIY electronic kits.\u003cbr\u003e\u003cbr\u003e🛠️ Full Copper Housing, Excellent Heat Dissipation: The all-brass housing aids focusing and provides good thermal performance for stable, prolonged operation.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eProduct Description:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eThis 9mm adjustable red laser head is the ideal optical component for makers, engineers, and hobbyists. It integrates a laser diode and collimating lens in a compact brass shell, producing a low-divergence, uniform beam. Perfect for upgrading laser levels, making custom pointers, building security systems, or conducting optics experiments—a reliable, controllable source of coherent light.\u003c\/p\u003e\n\u003cp style=\"font-size:24px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003e🚨 CRITICAL SAFETY \u0026amp; USAGE NOTES (READ FIRST!):\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003e❌ 【LASER SAFETY WARNINGS (STRICTLY PROHIBITED)】:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eNEVER look directly into the beam or point at eyes! Even when off, accidental activation can cause permanent eye damage.\u003cbr\u003e\u003cbr\u003eAvoid reflective surfaces! Glass, mirrors, metal can reflect the beam, causing indirect injury.\u003cbr\u003e\u003cbr\u003eNot a toy, keep away from children! Unsuitable for minors or persons untrained in laser safety.\u003cbr\u003e\u003cbr\u003eLaser safety goggles recommended! Especially during alignment or with invisible lasers, use matched-wavelength glasses.\u003cbr\u003e\u003cbr\u003eDo not aim at vehicles! Never point at cars, aircraft, etc., to avoid distracting operators.\u003c\/p\u003e\n\u003cp style=\"font-size:20px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003e⚠️ 【Critical Usage \u0026amp; Wiring Requirements】:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eCurrent-Limiting Resistor REQUIRED! For longevity, you MUST use a series resistor to limit operating current to \u0026lt;20mA. For prolonged use (\u0026gt;30 mins), use a higher value to prevent overheating. (We strongly recommend our Driver Kit SKU).\u003cbr\u003e\u003cbr\u003eStrict Voltage \u0026amp; Polarity: Use a 3V DC power source. Reverse connection is PROHIBITED! Reverse voltage \u0026gt;1V may permanently damage the laser.\u003cbr\u003e\u003cbr\u003eMind Heat Dissipation: Ensure adequate ventilation or add a small heat sink during continuous operation.\u003cbr\u003e\u003cbr\u003eSecure Mounting: Fix the laser head firmly with glue or a clamp to prevent focal shift from vibration.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003e✅ 【Required Skills \u0026amp; Accessories】:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eBasic soldering skill is REQUIRED.\u003cbr\u003e\u003cbr\u003eYou need to provide: 3V power supply (e.g., 2xAA battery holder), appropriate current-limiting resistor (calculate or use our kit), multimeter (to measure current).\u003cbr\u003e\u003cbr\u003eThis is the laser head ONLY. NO power supply, resistor, or driver circuit is included.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eSpecifications:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003eModel: 9mm Adjustable Red Laser Head (Brass Housing)\u003cbr\u003e\u003cbr\u003eLaser Color: Red\u003cbr\u003e\u003cbr\u003eWavelength: 650nm\u003cbr\u003e\u003cbr\u003eOutput Power: 5mW\u003cbr\u003e\u003cbr\u003eSpot Type: Dot \/ Line \/ Cross (select when ordering)\u003cbr\u003e\u003cbr\u003eOperating Voltage: 3V DC (Rated)\u003cbr\u003e\u003cbr\u003eOperating Current: \u0026lt; 20mA (Recommended)\u003cbr\u003e\u003cbr\u003eMax Forward Voltage: ≤ 4.5V (Transient)\u003cbr\u003e\u003cbr\u003eMax Reverse Voltage: ≤ 1V (Do not exceed)\u003cbr\u003e\u003cbr\u003eSpot Size (@15m): φ10mm ~ φ15mm\u003cbr\u003e\u003cbr\u003eEffective Range: Up to 200-1000m at night (Weather dependent)\u003cbr\u003e\u003cbr\u003eOperating Temperature: -10℃ ~ +40℃\u003cbr\u003e\u003cbr\u003eHousing Material: Adjustable Brass Sleeve\u003cbr\u003e\u003cbr\u003eDimensions: Ø9mm × ~30mm (Excluding pins)\u003cbr\u003e\u003cbr\u003ePin Status: Unsoldered (Straight pins)\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003ePackage Includes:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;text-align:left;color:rgb(67, 70, 73)\" class=\"word-break white-space mt-10\" align=\"left\"\u003e1 × 9mm Red Laser Head (Spot type as per selected SKU)\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S17747b417cca43709cb7f3779ee04182h.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S3867e7e56c9e41cab8c2ef02b408b4a0E.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S511646de76594531ab7c581c44d03681X.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S13b712e6b86a465caa1d65b221e81b79u.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf2c02a87789a4909b2690a022dcfc17aA.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S820cc96486af4370944b2b49279efce03.jpg\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Yoeruyo","offers":[{"title":"9mm Cross Laser","offer_id":55416257904939,"sku":"14:365458#9mm Cross Laser","price":10.85,"currency_code":"USD","in_stock":true},{"title":"9mm Dot Laser","offer_id":55416257937707,"sku":"14:200003699#9mm Dot Laser","price":10.8,"currency_code":"USD","in_stock":true},{"title":"9mm Line Laser","offer_id":55416257970475,"sku":"14:200002130#9mm Line Laser","price":9.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S17747b417cca43709cb7f3779ee04182h.webp?v=1788437987","url":"https:\/\/yoeruyo.com\/products\/9mm-adjustable-focus-red-laser-diode-head-650nm-5mw-3v-dot-line-cross-module-for-arduino-leveling-pointer-diy-electronic-kit","provider":"Yoeruyo","version":"1.0","type":"link"}