Do LED lights flicker like fluorescent lights?

However, LEDs may oscillate in light output even more than incandescent or fluorescent lamps did, says PNNL's Miller. Unlike HID or fluorescent, solid-state lighting is a direct current (DC) device, meaning that as long as constant current is supplied, the LED will illuminate without flicker, Benya says.

Hereof, why do dimmable LED lights flicker?

While a non-dimmable LED may perform well in a circuit with a dimmer switch (incandescent or LED) set to 100 percent, there is a chance the light will flicker and hum at other brightness levels. Also, it may dramatically shorten the life of the bulb. Smart bulbs are not meant to work with dimmer switches of any type.

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