Technical Index Model NF-904 (White) Wavelenth (nm) 650±10nm Operation Mode Pulsed (2Hz) and CW Fiber Type SM/MM Connector 2.5mm Universal Output power 30mW Working temp -20 ~ +60 ℃ (no dew) Storage Temp -40 ~ +85 ℃ Power Supply 1.5V battery User Manual 1pc Case 1pc Color box 1pc