JINGERL Fresnel Lens D42mm F45mm Sample 8 Focal Lengths Stage Lights Spotlight For Led Light Adjusting Beam DIY Projector Customizable (Color : D42mm, Size : F40mm)
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Product description
- 1 Can be used to LED light ,Stage lights ,Flashlight ,Fishing lights so mang Lamps and lanterns , Adjust the beam and output angle ;
- 5 Focal length 28 35 40 45 50 55 60 67 mm
- 4 Various optical experiments , researches or Optical product development
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