The CW: TDFA-CW from Nuphoton Technologies, Inc. is a Fiber Optic Amplifier with Supply Voltage 24 V, Input Power -10 dBm, Signal Gain 30 dB, Wavelength 1940 to 2010 nm, Operating Temperature -5 to 50 Degree C. More details for CW: TDFA-CW can be seen below.