Model: YT-723J

1). >1mW, <5mW laser pen, light on when pressing it's power button

• 532NM  ±10 wavelength green laser light
• 650NM  ±10 wavelength red laser light
• 405NM  ±10 wavelength UV laser light

2). Aluminum alloy material pen shape; Size: 157*14 mm, weight: 21g
3). Powered by 2*AAA dry batteries (not include)