3Pcs Laser Demonstration Pen Set, Laser Sight Pointer Dot Laser Light Pen (Purple + Green + Red)

Description

Product details Product specifications: 1.4 × 15cm Output wavelength: green light 532 nm, red light 650 nm, blue violet light 405 nm Output power: 5mW Range: 500 meters Point diameter: minimum point diameter 1.0 mm; Light spot at 15m < 18mm Product material: aluminum Battery: 2 * AAA dry battery (package not inclued) Appearance color: black Laser type: Visible laser diode Specification function: fixed focus, spot light spot, continuous power, continuous life> 5000 hours Package included 3 pieces of laser pens Attention 1. Keep away from children 2. Do not point directly to the eyes of humans or animals 3.Please do not keep it open for a long time, otherwise the light bulb can be easily damaged