The EDFA CW PM C Band from Nuphoton Technologies, Inc. is a Fiber Optic Amplifier with Supply Voltage 4.75 V, Noise Figure < 5.5 dB, Signal Gain Up - 43 dB, Wavelength 1528 to 1565 nm, Operating Temperature -5 to 65 Degree C. More details for EDFA CW PM C Band can be seen below.