Aniber CompanyAN-SLD-84-HP1 SLEDBenchtop Light Source 840 840nm 20mW840nm, 20mW broadband light source is a benchtop light source that's high-power, wide spectrum, and low coherence. It's based on single-mode fiber coupled superluminescent diode modules (SLD)Have some marks and scratches due to old stock.Power on and tested item testing picture are attached.© All the pictures are Organic and this part is physically in our stock