... Stage Light, Laser Swinger 50mw 660nm red laser module for health instrument Specifications: Item No.BOBLM-099Size16.0mm*55mmWavelength660nmPower50mwOperating VoltageDC2 ... security, the stage lights, tools, U disk, mobile phones, projectors, teaching flip T, temperature measurement (ranging) instrument, swinger, marking device, ... to customize and buy. 50mw 660nm red laser module for health instrument