If users are looking for a low price and high stability dot alignment, not limited by long distance or high height, a lot of users would prefer to make use of a Berlinlasers 445nm blue laser diode module. The adoption of an import 445nm blue laser diode within 50mW to 100mW and metal heat sink are configured with ultra compact size metal housing tube. It enables superior nice thermal emitting and highly stable blue dot projection in long lasting use.
Only after easy use of 5V, 9V 1000mA DC power supplies, not spending extra time on battery change, this blue dot laser alignment keeps work with highly visible blue laser beam emission, and highly clear blue dot projection within long lasting distance of 25 meters. When it makes correct use of output power, within freely installed distance of 3 meters, it assures the best direction and the most precise blue dot alignment for industrial dot alignment, laser show, decoration, military targeting and high tech etc.
https://www.berlinlasers.com/445nm-blue-laser-diode-module
https://www.berlinlasers.com/high-power-445nm-150mw-500mw-blue-laser-diode-module