The LDP-V 40-70 from PicoLAS GmbH is a Laser Diode Driver with Operating Temperature -20 to 55 Degree C, Compliance Voltage 70 V, Output Current 8 to 40 A, Pulse Width 15 ns to 1 µs, Output Voltage 70 V. More details for LDP-V 40-70 can be seen below.