The YAM-SM-VV from IPG Photonics is a Optical Amplifier with Input Power 40-60 mW & 5-15 mW, Saturated Output Power 4000 W, Saturated Output Power 4000 W, Input Power 40-60 mW & 5-15 mW, Supply Voltage (DC) 60 to 100 VDC. More details for YAM-SM-VV can be seen below.