With ArcLED, investment in arc technology can be upgraded later with LEDs using same lamphead casing and same power supply and control. User adds LED cassettes required, fits water cooling system, and RHINO ArcLED power supply does the rest. System automatically recognizes which type of cassette is installed in machine and adjusts RHINO control accordingly. Combination of quick-swap lampheads, reactive detection of required power, and automatic switching maximizes machine productivity.