What is the best job to make clear and stable dot projection? It might be processing at various work distances, thus it makes good job with a highly intense beam 520nm green dot laser alignment within 5mW to 50mW. Being made with an import 520nm green laser diode and cooling system inside durable metal housing tube, it achieves superior nice thermal emitting and increasing stability dot emission in long lasting use.
Being made with high duration metal housing tube, connecting with 5V, 9V 1000mA DC power supply, this 520nm green laser module keeps work with constant forest green laser beam and green dot emission onto any raw material surface. It allows freely adjusted dot diameter and dot emitting direction, and achieves no mistake dot alignment for all raw materials processing works perfectly.
Item: Berlinlasers 5mW to 50mW 520nm green dot laser alignment
Laser class: IIIa, IIIb
Optic lens: glass coated lens
Tube material: 16mm, 26mm anodized aluminum alloy 
Applications: drilling system, laser marking, laser engraving, military targeting and laser medical therapy device etc