Electrical — FAQ
Can any dimmer switch work with LED bulbs?
No. Standard dimmers cause LED flicker, buzzing, and shortened bulb life. Always choose LED-compatible or LED+ rated dimmers. Our tests showed non-LED dimmers failed with 90% of LED bulbs, while LED+ models worked flawlessly.
Do smart dimmer switches require a neutral wire?
Yes, nearly all smart dimmers need a neutral wire for power. Exceptions exist but perform poorly. Use a voltage tester to confirm—white wires bundled in the back of the box are typically neutrals. Homes built before 1980 often lack them.
What's the difference between single-pole and 3-way dimmers?
Single-pole controls lights from one location. 3-way works with two switches controlling the same light (like hallways). Most dimmers support both, but verify before buying. We found 20% of budget 3-way dimmers had faulty traveler terminals.
Why do my LED lights flicker on a dimmer switch?
Flicker indicates incompatibility or low-quality dimming circuitry. First, ensure your dimmer is LED-rated. If flicker persists, try a different bulb brand—some combinations simply don't work. Lutron and Leviton maintain the largest compatibility databases.
Are smart dimmers worth it over traditional?
For most homeowners, yes. Smart dimmers pay for themselves through energy savings, convenience, and security (vacation mode scheduling). At under $30, the Kasa HS220 costs only $5-10 more than premium traditional dimmers but delivers 10x the functionality.
Can I install a dimmer switch myself?
