Rayo de grasa grueso de 2 cm 450 nm puntero láser azul luz de señal de punto de referencia CA 100-220V
Wavelength：450nm. for:Railway Highway,Landmark Warning etc. Large Aperture Laser Light up to 2cm. Power Version: 1000 output. (Installation Position ：like Wall, ceiling ). With Cooling Fan. LED Color:Blue.