It's widely used in scientific research, laser printing, spectrum analysis, laser show, etc. W200/W300/W400/W500/W600/W1000 :1. W200 / ... ~180mW +Green 80mW +Blue 445nm/400mW 6.W1000/ 1000mW Laser module Specifications : Projector 1 , Red 650nm/200 x 2 +Green 532nm/ 120mW ... + Blue 445nm/400mW Projector 2 , Red 638nm /250mW +650nm/200mW + Green 532nm/120mW + Blue ...