445nm 455nm 450nm <5mW Blue Laser Pointer Pen
$15.3
$21.57
Description445nm 455nm 450nm <5mW Blue Laser Pointer PenSpecification Output: <5mW Wavelength: 450nm±10nm Working Voltage: 3V (2 pcs AAA batteries, not included) Working Current: 280mA 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