These replacement eyes allow you to see in total darkness, giving you darkvision with a range of 60 feet. They operate by sending out low-powered ultraviolet lasers that are then detected by receptors within the capacitors. When your capacitors are in operation, their lasers can be detected by creatures that have darkvision capacitors or can otherwise see ultraviolet light.
Advanced darkvision capacitors have the benefits of a wide-spectrum ocular implant. Long-range darkvision capacitors function like advanced capacitors but provide a darkvision range of 120 feet.