You are using an unsupported browser. Please update your browser to the latest version on or before July 31, 2020.
Looking for Z-Box Hub Support? Please click here to access the Z-Box Hub Support Portal.
announcement close button
Home > Light Switches > ZEN74 Toggle Dimmer > Lights Flicker with My ZEN74 Dimmer Switch
Lights Flicker with My ZEN74 Dimmer Switch
print icon

If your lights are flickering after installing the ZEN74 Toggle Dimmer, it could indicate a driver incompatibility between the bulb and dimmer. 

The executive element in ZEN74 Toggle Dimmers is TRIAC, a leading edge driver. If an LED bulb uses a trailing edge driver (or MOSFET), this may lead to flickering.


The solution to fixing the flickering (aside from trying different bulbs) is to either add a bypass to the load or trying a ZEN27/ZEN77 dimmer since these models use a MOSFET (trailing edge / ELV dimming). Please note: the ZEN27 and ZEN77 are paddle models, while the ZEN74 is a toggle dimmer.


You should also check to see if the LED bulbs you're using are labeled as dimmable. Regular on/off bulbs are not compatible with dimmers and will not perform correctly.


Never use a Z-Wave dimmer with smart bulbs unless you disable paddle control on them first. Dimming smart bulbs from a wall dimmer may damage your equipment.


Let our team know if you have any questions about your ZEN74 Dimmer or LED lights, we'll be happy to help!

0 out of 1 found this helpful

Have you tried our virtual assistant chatbot? This AI tool can help you find answers from thousands of articles in our Knowledge Base quickly. Find it in the bottom righthand corner of the page.

Need more help? Our friendly team is ready to help you with any questions or concerns you may have about Zooz devices. Click here to submit a support ticket.

Are your devices registered? Extended warranty and firmware access is available for registered Zooz customers. Click here to submit your registration form.

Find the latest Zooz devices and great Z-Wave deals at The Smartest House.
scroll to top icon