FAQ

Frequently Asked Questions
Decora Digital
™
Controls with Bluetooth
®
Technology

Leviton Manufacturing Co., Inc.
201 North Service Road, Melville, NY 11747-3138, 1-800-323-8920 Tech Line: 1-800-824-3005 Fax: [phone] www.leviton.com/decoradigital
© 2018 Leviton Manufacturing Co., Inc. All rights reserved. Subject to change without notice.
 What makes dimming a dimmable LED/CFL bulb different than dimming an incandescent
bulb?
Dimmable LED and CFL bulbs contain electronic circuitry not present in incandescent bulbs.
Therefore, it can be difficult to achieve the same smooth start and complete dimming range as
one sees with incandescent bulbs. The Decora Digital Dimmer is designed to interact with the
electronic circuitry, providing smooth low level dimming on the majority of bulbs by major
manufacturers.
 Are there any adjustments that will need to be made to the Decora Digital Device based on
the bulb I choose?
In certain cases, particularly those of lower quality LED-bulbs, flickering may be experienced
at the lower end of the dimming range. In order to improve performance, digital dimmers
incorporate a minimum adjustment feature that is accessible through the app. Users can raise
the lowest possible dim level to “trim” out any flicker issues.
Dimmable CFL bulbs may require an additional “kick start*” or automatic adjustment to turn on.
In this case, the dimmer will need to be set to CFL mode. Please refer to the device instruction
sheet for details.
 Can I use dimmable LED bulbs when the dimmer is set to CFL mode?
This is perfectly acceptable, especially if you encounter LED bulbs that are difficult to start at a
low preset dimmer level. In CFL mode the dimmer will provide increased energy or a
“kick start*” to start the bulb.
* “Kick start” is a precise boost of energy applied to difficult to start CFLs to initiate smooth start up and prevent
flickering. This feature maximizes the usable dimming range by allowing the user to start at the lowest possible
dim/bright bar position.
 My dimmable LED/CFL bulbs do not turn on when at the lowest dimmer setting. What can I
do?
Some bulbs have wider dimming ranges than others. In order to take advantage of the full
dimming range of the bulb, use the app to adjust and set the minimum light level. The minimum
light level should be set at the point where the lights turn on without delay. Once set, the lights
cannot be dimmed below that level and therefore are programmed to turn on without delay in
all future uses. Please refer to the device instruction sheet for details.
 I have some LED bulbs that seem to have a slight delay before they turn on, is this to be
expected?
It may depend on the bulb. If the dimmer is programmed to have the soft on and off feature
enabled, which fades the lights on and off as opposed to abruptly turning them on like a regular
switch, there could be a slight delay before some bulbs will turn on. While most will operate
fine with the soft on and off and changes to dimmer settings, some bulbs have a built in delay
during those events and it may take a moment before they will turn on or respond to changes
in dimmer settings.
Another reason is that some bulbs have wider dimming ranges than others. In order to take
advantage of the full dimming range of the bulb, use the app to adjust and set the minimum
light level. The minimum light level should be set at the point where the lights turn on without
delay. Once set, the lights cannot be dimmed below that level and therefore are programmed
to turn on without delay in all future uses.