3LED Lights Headband Helmet Magnifier - 3 Lenses

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About this item

  • 3 LED Lamps
  • 3 Lenses
  • Strong light source
  • Adjustable breatheable headband
  • Requires 3xAA batteries (not included)

 The combined focal length of multiple lenses:

Lens Number Magnification Focal Length (unit: mm)
Lens 1 1.5x
330
Lens 2 2x 250
Lens 3 8x 62.5


Lens Assembly:



Lens 1 + Lens 2 3.5x
142
Lens 1 + Lens 3
9.5x
52
Lens 1 + Lens 2 + Lens 3
11.5x
43