... efficiency 4.high reliability 650nm 5mW High Power Laser Diode TO-18 5.6mm Package [JG22]Speacialty1: ... :1 Note: This laser diode may do harm to human eyes, when the laser tube is working, pay ... environment to prevent condensation, condensation may damage the laser tube.4, At high temperatures, it will ... wrist strap when working with the laser. 650nm 5mW High Power Laser Diode TO-18 5.6mm Package [JG22 ...