The standard use of 445nm blue laser diode is not simply developing into a simple blue laser pointer, but being made into a even more practically used device of 445nm blue laser line generator module. Available with wide range output power of 50mW, 80mW to 100mW, only after its professional equipment with qualified glass coated lens or separate crystal lens with different fan angles, this blue laser is not only adopting quite small size tube diameter. It is always assuring highly fine and straight blue reference line projection at quite long work distance and other formal lighting occasions.