Fcousable 650nm Red Laser Diode Module USB Charging

Specifications:

USB Interface

50mW diameter: 12mm

100mW/200mW diameter: 16mm
Wavelength: 650nm
Power supply: DC5V
Light Shape: Dot/Line/Cross
Focusable: Yes
Output wave band: The visible light
Material: Aerospace aluminum
Optical portion: Focus Lens

1.Long time working: Best 3-4hours,after stop 30min,used again. (200mW must stop cooling down after working for a period of time before continuing, or add the Heatsink)
2.Lock ring: After focusing, it can lock the lens to prevent losing focus due to vibration