The AP-AMP1 from AdValue Photonics is a Optical Amplifier with Output Power 5 W, Output Power 5 W, Supply Voltage (AC) 100 to 240 VAC, 50 to 60 Hz, Wavelength Range 1900 to 2100 nm, Operating Temperature 10 to 35 Degree C. More details for AP-AMP1 can be seen below.