A power switch and all manually controllable features of the OPS model power supplies are accessible from the front panel. Four horizontal push buttons each activate a horizontal menu that allows for configuring of lamp operation mode, shutter, display mode, and setup with the help of a corresponding vertical menu that is activated as well. These functions are conveniently displayed and easily navigated by the LCD display on the front panel of the power supply.

Although Oriel power supplies are highly regulated, there are factors beyond the control of the power supply that may affect light output. Some of these are lamp aging, ambient temperature fluctuations, and filament erosion. For applications where high stability light output is especially critical, the LIK-LMP Light Intensity Controller Kit is suggested in order to compensate for such factors. It works in conjunction with the OPS Series power supplies to maintain a stable, long term output. The LIK-LMP utilizes a TE cooled silicon detector as its light sensing head. When used with the OPS-Q Series Arc Lamp Power Supplies this detector monitors light output from the arc lamp source. Constant feedback of the light output allows the OPS Series Power Supply to determine how much voltage/current should be supplied to the light source in order to keep its output intensity constant as the light source ages. Using the cables supplied with the LIK-LMP for interface with the OPS Series Power Supply, the temperature of the Si detector is monitored and the current supplied to the TE cooler is controlled as well. This stabilizes the temperature of the Si detector, creating consistent detector feedback independent of ambient temperature variations. The OPS-Q Series Arc Lamp Power Supplies are capable of controlling the temperature of the Si detector over a range of 0-25 °C.

The shutter control feature of the OPS model power supply is useable in power, current, and intensity control modes. Any shutter which responds by opening or closing when receiving a TTL signal can be controlled by the OPS Power Supplies. This includes the low-cost TTL shutter characteristic of Oriel model 71445 and the shutters designed into the Oriel Solar Simulators. A BNC connector is located on the rear panel of the power supply to output these TTL signals to the electronic shutter. The shutter can be manually opened or closed by pressing the SHUTTER button on the front panel of the power supply. RS-232 or USB control of the shutter is possible as well. Utilizing the OPS Power Supply's shutter control feature enables Timed exposure control mode. The exposure or open time of the shutter and number of repeat cycles is set by the user. Exposure times can be paused and resumed at will or reset to 0 in the middle of an exposure with the easy to use push buttons on the front panel. 

The OPS model power supplies are capable of storing up to four Setups. These Setups consist of lamp operation mode with relevant parameter limits (power, current, flux, etc.) and timing preferences for shutter and dosage control. This allows a user to easily recall previous testing parameters to create a repeatable setup. With 1 s resolution, the OPS Model Power Supply is also capable of logging the hours of operation has been in use to allow the user to be aware of when the lamp’s end of lifetime should be.