The OELDD-400 from O/E LAND INC. is a Laser Diode Driver with Operating Temperature -40 to 65 Degree C, Output Current 0 to 1200 mA, Output Voltage 3 to 20 V, Input Voltage 6 to 36 V, Supply Current 0 to 1200 mA. More details for OELDD-400 can be seen below.