Installing a dimmer switch is often viewed as a simple DIY project, but modern lighting systems, LED compatibility requirements, and older wiring found in many Tempe homes mean things are more complex (and dangerous) than you might think.
So, when can you do it yourself and when do you need to call in a pro? We’ll explain how to install a dimmer switch, dimmer switches for LED lights, and how to stay safe.
Can You Put a Dimmer on Any Light?
A dimmer switch regulates the amount of electrical power delivered to your light fixtures, so you can change the brightness. However, not every light or fixture is compatible with a dimmer switch. Dimmers generally work well with incandescent, halogen, and properly rated LED bulbs. However, some fixtures should never be placed on dimmers, including certain fluorescent lights, exhaust fans, motors, and non-dimmable LED fixtures.
But compatibility depends on more than the bulb alone. Fixture design, wiring method, switch location, and circuit load all matter, and these are a few reasons why homeowners in Tempe often run into problems with a DYI dimmer install.
Types of Dimmer Switches Used in Tempe Homes
The first step in how to install a dimmer switch is to figure out which type of dimmer you need.
Single-Pole Dimmer Switches
A single-pole dimmer controls one light from one location. These are the simplest types of installation and some homeowners can DYI-it if modern wiring for dimmers is already in place.
3-Way Dimmer Switches
If you have a fixture that’s controlled by two switches, you’ll need a 3-way dimmer. That’s a bit more complicated. DIY-ers often miswire these installations, so professional installation is strongly recommended.
Smart and Multi-Location Dimmers
Smart dimmers typically require neutral wires, grounding, and enough space in the electrical box. Many Tempe homeowners, especially those in older homes, find they don’t have the right connections or boxes, so professional installation will be required to comply with electrical codes.
Can You Use Dimmer Switches for LED Lights?
Traditionally, dimmers were designed for incandescent bulbs, which tolerate electrical fluctuations well.
It’s a little different with modern LED lighting. Using the wrong dimmer with LED bulbs often leads to flickering, buzzing, or burning out your bulbs faster. Dimmer switches for LED lights must be specifically rated for LEDs and matched to the wiring configuration in your home. Overloading a dimmer or installing it in a tight electrical box can cause overheating and early failure.
High-quality LED-rated dimmers regulate power more smoothly and generate less heat. Cheaper dimmers can cause problems.
Do Dimmer Switches Save Electricity?
When installed correctly, you can save on energy if you use the dimmer regularly. According to the U.S. Department of Energy, lighting accounts for about 15% of your total electricity use, so dimmers combined with LED bulbs can save you money.
How to Install a Dimmer Switch
Before you start, remember that electrical work always carries some level of risk, especially in older homes. In Tempe, it’s not uncommon to find back-stabbed wiring, overcrowded electrical boxes, or heavy electrical loads on circuit breakers. These things require highly trained electricians to keep you safe.
If you have the right wiring and space in the box, installation requires:
- Turning off the power to the outlet at the breaker
- Confirming the type of dimmer you need
- Removing the existing switch
- Connecting the dimmer
- Making sure all wire connections are secure
- Turning on the breaker and testing the outlet
It may seem like a simple job, but many wiring issues are hidden inside your walls. A highly trained electrician can verify whether dimmers can be used and install them properly.
If you do decide to do it yourself, pay particular attention to missing neutral wires, older wiring, multiple switches sharing the same box, or any heat buildup. After installation, if you notice lights flickering, switches making a buzzing noise or feeling warm, or breakers that trip, it’s a warning sign and you’ll want a professional inspection.
Professional installation is always the safest option. A highly trained electrician will ensure your dimmer is installed properly, your wiring and electrical panel can handle the load, and your system complies with local codes.
Thinking about installing dimmers in your Tempe home? Call George Brazil Plumbing & Electrical to schedule service. We offer same-day service with upfront pricing before work begins. For more than 70 years, homeowners have trusted George Brazil for all of their electrical and plumbing needs.