QLT MDR 45 12V DC Power Supply output PWM dimmable 0-10V or potentiometer

QLT MDR 45 12V DC Power Supply is a dimmable LED driver manufactured by QLT, identified by reference A40MDR04501B. Built in polycarbonate, its compact body — 206 x 51 x 36 mm — combines durability and lightness, with an IP20 protection rating and insulation class II, making it suitable for protected indoor installations. Its core function is to power LED strips and modules at a stable 12V DC output, delivered as constant voltage PWM at 300Hz (±5%) for smooth and precise dimming performance.

This power supply is designed for technical LED lighting installations where accurate light control is essential. Dimming is achieved via a 470K potentiometer or a 0-10V signal, with switching on, adjusting and switching off also manageable through push-buttons. The unit supports a current output between 1660mA and 2500mA, with a maximum output power of 45W. The input accepts voltages from 100V to 240V AC, ensuring compatibility with international power grids. Self-resetting protections against overtemperatures, open circuits and output short circuits are built in. The reduced dimensions allow easy mounting on DIN rail or within electrical enclosures.