Independent power supply - IP20 - Class II of insulation with light control - switching on, regulation and switching off - with one or more buttons. Adjustment with 470K potentiometer or 0-10V signal. Output in constant voltage PWM 300Hz ± 5%. Self-restoring protection against overheating, against open circuit and short-circuits on the secondary. Power supply: 100V - 250V / AC - Stabilized output.