Why does my LED bulb flicker when the AC or another appliance turns on?
Your LED bulb flickers when a big appliance like the AC starts because that appliance briefly pulls a lot of power, causing…
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Lighting & Bulbs
Practical, step-by-step fixes for lighting & bulbs problems — 70 published so far.
Why does my LED bulb flicker when the AC or another big appliance turns on?
That flicker is usually a voltage drop caused by the appliance pulling a large current when it starts. The LED's driver is…
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Why does my LED bulb flicker when the air conditioner turns on?
Your LED flickers because the AC startup draws a large current surge, causing a momentary voltage drop that affects sensitive LED drivers.…
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Why does my LED bulb flicker when the dimmer is set low?
Your LED bulb flickers at low dimmer settings because the dimmer's minimum load isn't met or it's incompatible with LED technology —…
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Why does my LED bulb flicker when the dimmer is turned down low?
Your LED bulb flickers at low dimmer settings because the dimmer is likely an older leading-edge model designed for incandescent bulbs, not…
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Why does my LED bulb flicker when the microwave runs?
Your LED bulb flickers when the microwave runs because the microwave draws a large startup current that momentarily drops voltage on the…
See the fixWhy does my LED bulb glow faintly when the switch is off?
A faint glow when the switch is off usually means a tiny leakage current from the switch or wiring is enough to…
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Why does my light switch make a buzzing noise?
A buzzing light switch usually means the switch contacts are worn, the wiring is loose, or the switch is incompatible with the…
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Why does my smart bulb flicker when connected to a dimmer switch?
Smart bulbs flicker on traditional dimmer switches because the dimmer chops the voltage waveform, which conflicts with the bulb's internal driver circuitry.…
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Why does my smart bulb flicker when controlled by a dimmer switch?
Smart bulbs flicker on dimmer switches because they need full voltage to power their internal electronics, but dimmers chop the waveform to…
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Why is my dimmer switch buzzing or making my LED bulbs flicker?
Your dimmer switch is probably not rated for LED bulbs. Older dimmers are designed for higher-wattage incandescent bulbs and don't control the…
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Why is my LED bulb buzzing and how do I fix it?
LED bulbs buzz most often because the dimmer switch is not rated for LEDs, the bulb and dimmer are incompatible, or the…
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