These OEM Power Supplies run 50 to 1600 W arc lamps. We removed some of the features and versatility from the Fully Featured Power Supplies without compromising performance, reliability, and safety features, in order to offer Researchers and Systems Integrators more economical options (see Oriel^® Digital Arc Lamp Power Supplies for Fully Featured Power Supplies). These power supplies are factory calibrated for the specified lamp; there is no need to adjust the voltage or current.