LED driver, lighting equipment and light fixture

Lighting equipment, comprising:

• an LED light source as an illumination light source, the LED light source comprising a plurality of LEDs;
• and
• an LED driver, comprising:
• a DC power supply configured to selectively output a first DC voltage or a second DC voltage lower than the first DC voltage;
• a switching regulator configured to reduce the first DC voltage to supply an LED light source with a first output voltage that is equal to or higher than a threshold voltage;
• a dropper regulator configured to reduce the second DC voltage to supply the LED light source with a second output voltage that is below the threshold voltage;
• and
• a controller configured to:
• cause the DC power supply to output the first DC voltage and cause the switching regulator to supply the LED light source with the first output voltage, thereby supplying the LED light source with the first output voltage;
• and cause the DC power supply to output the second DC voltage and cause the dropper regulator to supply the LED light source with the second output voltage, thereby supplying the LED light source with the second output voltage.