The 18 Channels 1550 nm EDFA Amplifier from Shenzhen Golight Technology Co., Ltd is a Fiber Optic Amplifier with AC Voltage 100 - 240 VAC, Input Power -3 to 10 dBm, Noise Figure 5 dB, Saturated Output Power 13 - 27 dBm, Saturated Output Power 0.02 - 0.5012 W. More details for 18 Channels 1550 nm EDFA Amplifier can be seen below.