QT258DIM is an Analogue Dimmable Electronic Ballast with high frequency, suitable for use with the 1 to 10V analogue dimmable system. This ballast features same luminous flux with direct and alternating current, perfect lamp starts for applications with motion sensors, dimming of amalgam lamps without flickering or reduced lifespan, very high energy efficiency due to cut-off technology. It offers automatic restart after lamp replacement ECGs comply with MINERGIE standard due to very low standby consumption, automatic shutdown of defective lamps and at end of life (EOL T.2), power boost for stable lamp operation and thermal management at high tc over temperature protection.