X3 Beam Expander - Sanwu Lasers
This is by no means a technical review, as I do not have the technical specifications for the optics. This is another excellent product from Sanwu, the Beam Expander gives you fine control of your laser over varying distances. I particularly recommend this product for use with 635nm high power lasers, as it goes a long way to effectively reduce the bar shaped beam profile of these diodes. For other wavelengths it gives great performance with increasing the visible range of your laser and reducing divergence over a distance. I highly recommend this bit of optics for your laser. 10/10!