SDLaser Red Pointer 303 Lazer 50000mW Powerful Adjustable Focus Burning Pointers Pen with Safe Key Package Includes 1 x Red Laser Pointer 303(Charger and Battery Not Included) Features Body material: aerometal Switch: constant on/off button Focus mode: adjustable Expected lifetime: > 8000 hours Working time: >1hours Laser range: 1000-3000meters Max brightness: >350lm Specifications Surface treatment:hard anodizing black Safety level:Class III B Circuit control:APC Flare forms:plaque-forming - circle Beam style:continuous line Spot size:6M place <φ10mm Working voltage:DC=3.0-3.7V Preheat time: < 3seconds Working temperature:15 degrees C to 35 degrees C Storage temperature:minus 10 degrees C to 40 degrees C Body Color:Black Laser Color:Red Net weight:112g