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Dimming LEDs is not as easy as dimming traditional lighting, like halogen and incandescent bulbs.
A common issue with LED dimmability is sudden turn on or turn off when you try to adjust light levels with your dimmer switch. Or you may have "dead areas" as you slide your dimmer switch. Or your LED lamps may simply flicker or flash when paired with certain dimmer switches.
Here's how we'd describe some of those symptoms:
1. Drop out
This symptom occurs when you are trying to dim the lighting down and the light suddenly cuts out before you slide to the bottom of the switch.
2. Pop on
This is the inverse of "drop out" and occurs when you're sliding the dimmer switch on, to increase light levels, but your LED lamps suddenly turn on at a brighter level than you would normally except.
3. Dead travel
This symptom is present when your lamps don't respond to the adjustments you're making on the dimmer switch for certain sections of the dimming scale.
4. Ghosting
This symptom occurs when you've dimmed your lamps all the way down, but they continue to glow or produce small amounts of light.
5. Flickering
This symptom is understood as rapid, sporadic pulsing of your lamps when paired with dimmer switches.
6. Strobing
Similar to flickering, strobing occurs when your lamps rhythmically flash at a less-frequent rate than a flicker.
7. Flashing
This is understood to be a more sporadic, infrequent symptom of bad LED dimming, occurring when the lights randomly turn on and off when paired with a dimmer control.
Another problem we've noticed with LED dimming includes new lighting technology. This might sound backwards but using the latest and brightest lighting lamps and fixtures may not work for every setting.
For example, restaurants and hotels may want to set a certain ambiance using LED lights on a dimmer. New LED fixtures can be so bright and efficient, you have to take the lights down very low on the dimmer in order to get them to the right level. That's often when we notice problems.
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