DA- LS-M O p tical Light Source Dawnergy’s handheld light source adopts laser (or LED) as light-emitting device, which has the advantages of large output power, good output power and wavelength stability. At the same time, the built-in modulation function can facilitate frequency identification or optical fiber identification with other instruments. Features l High stability multi wavelength single (multi) mode laser output, CW mode or modulation mode. l LCD displays the