405nm 5mW Violet Blue Laser Pointer Pen Laser Module
$16.07
$20.25
Description405nm 5mW Violet Blue Laser Pointer Pen Laser ModuleSpecification Output: <5mW Wavelength: 405nm±10nm Working Voltage: 3V (2 pcs AAA batteries, not included) Laser Shape: Dot Size: Dia.14mm Battery direction for installation: pole of the battery connects to the tail of the pen, – pole of the battery connects the spring of the inside module.
Laser Pointer