5pcs 5mm Collimating/Focus Lens for Laser Diode Module Focal Length 6.0 mm: Industrial & Scientific

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See more product details 5mm acrylic focusing lens for school and DIY projects. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.

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