KNX Actuators Universal 4 CH Dimmers ITR500-001 has 4 channel 1.5A dimming capability. It has short circuit, over load and heat protection. ITR500-001 can dimming from 0V to 10V for per channel. The outputs for MAX 10A be switched ON or OFF on every output channel, also can manually switch. Control types include both input and output, so, Absorption and output type ballast can be connected to this module.