The HVR DRIVE from G&H is a Pockels Cell Driver with Output Voltage Amplitude 0 to 7.5 kV, Supply Voltage(DC) 21 to 28 VDC, Fall Time 10 to 15 ns, Trigger Voltage 5 V (Input), Repetition Rate 0 to 200 kHz. More details for HVR DRIVE can be seen below.