{"product_id":"9mm-laser-diode-red-laser-head-dot-line-cross-spot-5mw-650nm-3v-20ma-copper-housing-for-level-laser-pointer-long-distance","title":"9mm Laser Diode Red Laser Head Dot Line Cross Spot 5mW 650nm 3V  20mA Copper Housing for Level Laser Pointer Long Distance","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\"\u003e9mm Adjustable Focus Red Laser Head | 3 Spot Patterns | Plug \u0026amp; Play | for Level, Pointer, Communication 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\"\u003e✨ Key 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🔧 Adjustable Copper Housing: Precision thread design for fine focus adjustment → delivers clear \u0026amp; stable spot for various distances\u003cbr\u003e\u003cbr\u003e🔴 650nm Red Laser: 5mW output, high brightness \u0026amp; low power consumption → visible in daylight, clear at night, energy-saving\u003cbr\u003e\u003cbr\u003e⚙️ Three Spot Patterns: Dot, line, and cross spots available → multi-use for measuring, marking, and positioning\u003cbr\u003e\u003cbr\u003e🔌 Ready-to-Use Design: Pre-focused and glued, pins unsoldered → connect to 3V power directly, no extra calibration needed\u003cbr\u003e\u003cbr\u003e📏 Precision Optics: Integrated laser chip + collimating lens → uniform spot, small divergence, ideal for long-distance applications\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📝 Product 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 red laser diode features an adjustable copper housing, offering dot, line, and cross spot patterns. Operating at 3V, 5mW, 650nm, it comes pre-focused and fixed—ready to use upon connection. Widely used in laser levels, electronic pointers, long-distance communication, security alarms, and various DIY\/industrial applications.\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⚠️ Important Notes (Must Read)\u003cbr\u003eLaser 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\"\u003e🚫 NEVER point at eyes: Even when turned off, accidental activation can cause permanent eye damage.\u003cbr\u003e\u003cbr\u003e🚫 Avoid reflective surfaces: Glass, mirrors, and metal can reflect laser beams, causing indirect eye injury.\u003cbr\u003e\u003cbr\u003e🚫 Not a toy, keep away from children: Unsuitable for minors or persons untrained in laser safety.\u003cbr\u003e\u003cbr\u003e🛡️ Wear safety goggles: Use matched-wavelength laser safety glasses, especially with high-power or invisible lasers.\u003cbr\u003e\u003cbr\u003e🚫 Do not aim at vehicles: Never point at cars, aircraft, or moving transport to avoid distracting operators.\u003cbr\u003e\u003cbr\u003e🔋 Battery safety: Use appropriate batteries, prevent reverse polarity, short circuits, overcharge, or overheating to avoid fire\/explosion.\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\"\u003eUsage \u0026amp; Installation Tips:\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💡 Current-limiting resistor: For prolonged use (\u0026gt;30 mins), increase resistor value to prevent overheating.\u003cbr\u003e\u003cbr\u003e⚡ Voltage \u0026amp; polarity: Use 3V DC strictly, keep current \u0026lt;20mA. Reverse connection is prohibited (\u0026gt;1V reverse voltage may damage the device).\u003cbr\u003e\u003cbr\u003e🔧 Heat dissipation: Add a heat sink or ensure ventilation during continuous operation to extend service life (\u0026gt;1000 hours).\u003cbr\u003e\u003cbr\u003e📍 Mounting: Secure the laser head with glue or clamps to prevent focal shift due to 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📊 Specifications\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 Red Laser Head (Adjustable Copper Housing)\u003cbr\u003e\u003cbr\u003eColor: 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 at 15m: φ10mm~φ15mm\u003cbr\u003e\u003cbr\u003eEffective Range: Up to 200-1000m at night (weather dependent)\u003cbr\u003e\u003cbr\u003eOperating Temperature: -36℃ ~ +65℃\u003cbr\u003e\u003cbr\u003eStorage Temperature: -36℃ ~ +65℃\u003cbr\u003e\u003cbr\u003eLifetime: \u0026gt;1000 hours (under normal use)\u003cbr\u003e\u003cbr\u003eHousing Material: Adjustable copper 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\"\u003e📦 Package 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 (Dot\/Line\/Cross according to 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\/S535b003b37a14753bbf76bb2aef3fd440.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S955dae2b9e664e6baea90699a7dedd13P.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0f8fe146bc9e4ab3ab3362e8a82e9600D.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sf3f0dff3b816430ab8785c7638b8fa74p.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S0c1379400f824d64ba2e64799f561c41b.jpg\" slate-data-type=\"image\"\u003e\u003cimg style=\"width:100%;height:auto\" width=\"100%\" height=\"auto\" src=\"https:\/\/ae01.alicdn.com\/kf\/S156a79e29927475bba48e8fdaafef94cb.jpg\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Yoeruyo","offers":[{"title":"9mm Dot Laser","offer_id":55419492008235,"sku":"14:200002130#9mm Dot Laser","price":12.2,"currency_code":"USD","in_stock":true},{"title":"9mm Cross Laser","offer_id":55419492041003,"sku":"14:175#9mm Cross Laser","price":12.78,"currency_code":"USD","in_stock":true},{"title":"9mm Line Laser","offer_id":55419492073771,"sku":"14:350853#9mm Line Laser","price":12.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S535b003b37a14753bbf76bb2aef3fd440.webp?v=1788490973","url":"https:\/\/yoeruyo.com\/products\/9mm-laser-diode-red-laser-head-dot-line-cross-spot-5mw-650nm-3v-20ma-copper-housing-for-level-laser-pointer-long-distance","provider":"Yoeruyo","version":"1.0","type":"link"}