... 3, Low cost 4, 5yrs warranty 5, Long Life Mini D-Series Laser Diode Module EL63D201G21, High quality industrial laser diode2 ... Customers can chose different types according to their specific applications.D-series (Dot) Laser Diode ModuleModelEL63D201G2Wavelength637nmOutput power<14mWDivergence<0.2mradBeam size ... , such as 405nm 480nm 780nm 808nm 850nm 980nm. Mini D-Series Laser Diode Module EL63D201G2