... Instrument, Stage Light, Laser Swinger 50mw 660nm red laser module for health instrument Specifications: Item No.BOBLM-099Size16.0mm*55mmWavelength660nmPower50mwOperating VoltageDC2 ... :Professional manufacturer of laser module. the laser module can be used in equipment, Care instrument, Kam false security, the stage lights, ... to customize and buy. 50mw 660nm red laser module for health instrument