Are you searching for a Red Laser Module which works perfectly and is easily disassembled for installation of your own diode? This is it!This is an industrial grade Adjust Focus Laser Module completely sealed in an aluminum silver case, extra long lead wires. Red Laser Adjust Module Focused Dot is exquisite and durable. Great for DIY projects. High-quality laser diode, optical glass lens, driver circuit and housing. High reliability, high stability and long life. Adjust Focus Laser Module is suitable for various laser night vision, infrared lighting, military equipment and instrumentation, laser rangefinder, laser medical equipment, laser positioning device. High stability, adjustable focus, plug and play, hard wearing, abrasive blasting surfacing and aluminum oxidation process. This Red Laser Diode is excellent and is a cheap, reliable and definitely worthwhile housing/beam focuse!