{"product_id":"2w-2-5w-525nm-compressed-beam-green-laser-flashlight-custom-cnc-integrated-lens-3-power-modes-overheat-protection-usb-c-charging-with-free-5000mah-battery","title":"2W-2.5W 525nm Compressed Beam Green Laser Flashlight, Custom CNC Integrated Lens, 3 Power Modes, Overheat Protection, USB-C Charging, With Free 5000mAh Battery","description":"\u003cdiv\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eThis upgraded 2W-2.5W 525nm green laser flashlight adopts exclusive compressed beam optical design, built for astronomy enthusiasts, optical experiment hobbyists and outdoor engineering workers. Every optical structure and internal hardware is independently designed and CNC machined in our factory, with core technical advantages unmatched by ordinary assembled laser torches.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eCore Optical Advantage: Custom Compressed Beam System\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003eUltra-Narrow Collimated Beam\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nThe beam divergence matches a standard 4x beam expander, while the exit beam diameter only reaches 1cm — half the spot size of regular 4x expanded lasers. It maintains tight concentrated light over ultra-long distances without rapid diffusion.\u003c\/li\u003e\n\u003cli\u003eCNC One-Piece Integrated Custom Lens\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nWe independently design and CNC machine the integrated optical lens as a single forming part. Light loss is controlled to a negligible level, maximizing actual light output transmitted through the lens.\u003c\/li\u003e\n\u003cli\u003eZero Visible Stray Light\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nPrecision optical calibration delivers clean, uniform collimated spot without messy peripheral stray light, ideal for long-distance stargazing and precision alignment.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePremium Latest-Gen Laser Diode (Core Power Advantage)\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eThis laser is equipped with brand-new premium high-spec green laser diodes, stably tuned to a steady 2W–2.5W output range under normal operating temperature.\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nOnly top-tier latest-generation diodes can safely sustain stable 2–2.5W working power. Low-cost entry-level diodes have limited performance ceiling, and cannot support stable power output above 1.5W even with tuning.\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nEvery unit is calibrated to deliver consistent real output power, no virtual power labeling.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eObjective Technical Science: Heat Conduction vs Heat Dissipation\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eMany users confuse thermal conductivity and heat dissipation when choosing lasers, here is clear professional popular science:\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003eThermal conductivity (copper vs brass): Copper conducts heat faster than brass, but this advantage only works for long-distance heat transfer over dozens of centimeters.\u003c\/li\u003e\n\u003cli\u003eHeat dissipation logic for small portable lasers:\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nThe heat transfer distance between laser diode, cooling base and outer aluminum shell is nearly 0. Even 1–2cm transfer distance makes copper’s extra conductivity redundant for low-power lasers under 10W.\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nThe aluminum outer shell bears all heat dissipation work for handheld lasers. For 2–2.5W low-power lasers, standard cooling structures fully meet temperature control demand; high-conductivity copper heat sinks only deliver practical value for industrial lasers over tens of watts.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePractical Built-In Functions\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003e3 Adjustable Power Output Modes\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nSwitch low\/medium\/high power freely to match stargazing, short-range alignment or long-distance observation scenes, extend single-battery runtime.\u003c\/li\u003e\n\u003cli\u003eIntelligent Automatic Overheat Protection\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nBuilt-in temperature sensing module will cut power automatically when internal temperature exceeds safety threshold, effectively protect laser diode and extend service life.\u003c\/li\u003e\n\u003cli\u003eUniversal USB Type-C Charging Port\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nCompatible with power banks, wall chargers and car chargers, convenient for outdoor fast charging.\u003c\/li\u003e\n\u003cli\u003eFree Included 5000mAh Large-Capacity Rechargeable Battery\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\nComes with high-capacity lithium battery out of the box to support long-duration continuous use.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eWavelength: 525nm Pure Green\u003c\/li\u003e\n\u003cli\u003eStable Output Power: 2W–2.5W\u003c\/li\u003e\n\u003cli\u003eBeam Design: Custom Compressed Collimated Beam\u003c\/li\u003e\n\u003cli\u003eExit Beam Diameter: ~1cm\u003c\/li\u003e\n\u003cli\u003eOptical Lens: Self-Designed CNC One-Piece Integrated Lens, Ultra-Low Light Loss\u003c\/li\u003e\n\u003cli\u003ePower Gears: 3 Adjustable Output Modes\u003c\/li\u003e\n\u003cli\u003eSafety Feature: Auto Overheat Shutdown Protection\u003c\/li\u003e\n\u003cli\u003eCharging Interface: USB Type-C\u003c\/li\u003e\n\u003cli\u003eIncluded Accessory: 5000mAh Rechargeable Lithium Battery\u003c\/li\u003e\n\u003cli\u003eApplication Scenarios: Astronomy Star Pointing, Long-Distance Outdoor Survey, Engineering Alignment, Optical Research Experiments\u003c\/li\u003e\n\u003cli\u003eTarget User: Adult Optical Hobbyists, Astronomers, Outdoor \u0026amp; Construction Professionals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMandatory Laser Safety Disclaimer (Platform Required)\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003eThis product is Class 4 professional optical equipment, only for adult use, strictly keep away from minors under 18 years old.\u003c\/li\u003e\n\u003cli\u003eAlways wear matched laser safety eyewear during operation to avoid irreversible retinal injury.\u003c\/li\u003e\n\u003cli\u003eNever aim laser beam at human eyes, aircraft, moving vehicles, buildings, wildlife or public crowds.\u003c\/li\u003e\n\u003cli\u003eDo not disassemble internal laser module without professional guidance; unauthorized modification will void all safety protection mechanisms.\u003c\/li\u003e\n\u003cli\u003eDo not leave the laser powered on unattended for extended periods\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e","brand":"Gearlair","offers":[{"title":"Default Title","offer_id":50584510267615,"sku":null,"price":398.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/3632\/2783\/files\/image_8-9w_455nm_..._0_0348de3c-1dec-48da-8d14-4a61b54d6157.jpg?v=1784516397","url":"https:\/\/gearlair.com\/products\/2w-2-5w-525nm-compressed-beam-green-laser-flashlight-custom-cnc-integrated-lens-3-power-modes-overheat-protection-usb-c-charging-with-free-5000mah-battery","provider":"Gearlair","version":"1.0","type":"link"}