Model: Laser-303; Material: Hard aluminum; Surface treatment: Black anodized; Switch mode: Touch switch; Battery: 18650 rechargeable battery; Wavelength: 405nm; Output power: 200mW; Warm-up time: 0.001 seconds; Operating voltage: DC 3.7V; With key lock protection; Range: 100-500 meters (maximum distance visible to the naked eye at night)Product features: 1. Made from aerospace-grade aluminum alloy, solid and durable; 2. External focus design allows easy adjustment of beam thickness and spot size; 3. Uses 18650 rechargeable battery for high capacity and long runtime; 4. Front switch for simple operation press to turn on, release to turn off; 5. High-quality imported laser diode and components for extended lifespan of over 10,000 hours; 6. Includes safety lock when not in use, rotate the switch key to the red dot and remove it to disconnect power; 7. Built-in laser module with improved heat dissipation and protective design for circuit board stability (current advanced enhancement of laser circuit reliability).