Selecting the Proper Dimmer | Lighting Basics | Bulbs.com (2024)

Selecting the proper dimmer was once a simple task with a few choices for your home or business lighting systems. With all the changes over recent years, selecting the proper dimmer now has many new considerations such as type of lighting, wattage load, single/multi-location and style. More options now come with energy-saving benefits. According to Lutron, replacing 2 standard light switches with Lutron dimmers in every US home would save $1.5 billion in energy.

Before you start shopping for your new Lighting Controls, you must first identify the type of lighting technology you wish to use. Incandescent or Halogen bulbs used to be the only choice. They work great with dimming systems, but don’t offer the energy savings that many consumers find desirable in a home or business lighting system. With the advent of higher electrical costs, many businesses are looking for ways to save energy with lighting.

In addition to table lamps and wall sconces that provide ambient and accent lighting, one of the most typical light fixture used with a dimming system would be the 6" recessed can light often found in entry ways or any general lighting application. By switching to CFL or LED, you will find a large reduction in your electrical bill while still getting the amount of light that you need. We're also seeing customers using these dimmers for track lighting. Where desirable ambient light levels are needed but where a dimmed light setting is also desirable. In either case, you will save energy which means saving money off your electric bill.

Let’s take a look at some energy-saving options:

Compact Fluorescent Lights (CFL)

When people think about dimming, they usually think about traditional incandescent or halogen light bulbs, but did you know that you can now create that same look with added energy savings by using compact fluorescent lights (CFL). If it has been a few years since you’ve tried a CFL, we recommend that you try again. CFL technology has improved dramatically and there are now many dimmable options available. In fact, many dimmable CFL lamps will smoothly dim down to 15% of their light output. When compared to incandescent lighting, these last longer and use much less energy making them a perfect replacement.

As with all fluorescent bulbs, they rely on ballasts inside of the fixtures or units to make them work. With these dimming compact bulbs, it's especially critical that the ballast is one that is rated for dimming on incandescent dimmers. They don't always work with every dimming situation, but in most of them, they work wonderfully.

There are several kinds of compact fluorescent bulb types including: spiral shape, R20, R30 and R40 sizes to replace almost any flood, track, wall sconce or table lamp bulb you may be using now.

For example, the R30 CFL dimmable is a suitable replacement for 65BR30 lamps, which are probably the most common flood light in use today. Whether you need ambiance at home or lowered lighting for a company meeting, dimmable CFLs will give you the look you want with added energy savings.

Light Emitting Diodes (LED)

Some of the most recent changes to the lighting industry revolve around Light Emitting Diodes or LEDs. With so many improvements to this technology it is becoming easier to find an appropriate energy-efficient LED replacement to work with your dimming system. Most lamps offer a rated life between 25,000-50,000 hours and wattage ranges at a fraction of their incandescent or halogen counterparts.

Dimmable LED lamps offer smooth dimming from 100% to as low as 0.5%. This may vary between dimming systems.

And much like dimmable CFL lamps, LEDs come in a variety of bulbs types including: a-style, decorative, MR16 and reflectors as replacement options for your current lighting.

Maximum Wattage Load

Generally speaking, you will be looking for either 600 watt max load or 1000 watt. When choosing dimmers for dimmable LEDs or CFLs, you should not load a dimmer higher than approximately 25% of the rated load for the dimmer.

Location & Style

The new Lutron C·L line of dimmers offer a wide variety of options from single to multi-location systems and switch options such as slide/rocker, tap, paddle and toggle. All are UL listed for controlling a broad range of dimmable CFLs and LEDs. We carry Lutron’s most popular models:

  • Skylark
  • Nova T
  • Maestro
  • Ariadni
  • Diva
  • Skylark Contour

We described some of the most commonly used applications using dimmers for the home and commercial lighting in this section. Also, we have a large inventory of linear fluorescent bulbs and ballasts for nearly every commercial lighting need. Whatever type you choose, you will be saving energy while getting the most light for your money.

If you are starting your search for the right lighting system, don’t forget to take a look at our full line of Lutron Lighting Controls. Please note: Lighting Controls should only be installed by a licensed electrician.

  • Download the Lutron Dimmer Compatibility List for dimmable CFL and LED products that are compatible with Lutron C.L Dimmers.

If you need help identifying a bulb or the proper dimmer, our specially trained Lighting Specialists can help you determine the right choice. Call 888.455.2800 to speak with a Lighting Specialist.

Selecting the Proper Dimmer | Lighting Basics | Bulbs.com (2024)

FAQs

How do I choose the right dimmer? ›

Choose a dimmer with a wattage rating that meets or exceeds the total wattage of all the light bulbs the dimmer will control. For example, if the dimmer controls a fixture with ten 75-watt bulbs, you need a dimmer rated for 750 watts or higher.

What kind of light bulb do I need for a dimmer switch? ›

As a rule of thumb, nearly all incandescent light bulbs are compatible with dimmers. Incandescent light bulbs are the traditional ones where you can see the filament inside. The places where you might run into trouble are LED bulbs. There are various kinds of these bulbs that do not work with a dimmer switch.

What is the correct dimmer for LED lights? ›

There are two types of dimmer switch for mains dimming in your home; leading edge and trailing edge. Trailing edge switches work best with LEDs. If your dimmer switch is old it's likely a leading edge switch and worth changing to a trailing edge version.

What happens if you put a non-dimmable LED bulb in a dimmer? ›

You can use a dimmable LED lamp in a non-dimmable circuit. You should NOT use a non-dimmable lamp in a dimmable circuit as it may cause damage to the lamp and or circuit. Integral lamps are clearly marked as dimmable or non-dimmable on the packaging and on the lamp.

How to size a dimmer switch for LED lights? ›

A rule of thumb commonly used to calculate a load for LED dimmers is to divide the stated maximum load by 10. For example a 400W dimmer switch should have no more than 40W of LED bulbs connected to it, which would equate to eight 5W bulbs.

How many watts should my dimmer switch be? ›

The calculation couldn't be simpler. Add up the wattage of each light on that switch and you have your answer. If you have 4 lights that are 50W each you'll need a 200W dimmer or bigger.

What happens if you use the wrong dimmer with LED lights? ›

Not all dimmers are compatible with LED lights, and using an incompatible one could cause flickering, reduced lifespan of your LEDs, or they might not even dim properly at all.

How to tell if a dimmer is LED compatible? ›

Check Your Existing Dimmer

The type of dimmer switch and it's minimum/maximum load range will indicate the compatibility with LED light bulbs. Trailing edge dimmers work best with LED light bulbs and leading-edge dimmers work best with traditional incandescent and halogen light bulbs.

Do LED bulbs require a special dimmer? ›

Use an LED Dimmer switch

A standard dimmer switch cannot be used with an LED light as you will never be able to dim the LED light either completely or not very well. LED lights need their own special electronic dimmer switch to have a fully functioning and dimming light.

What are three types of dimmers? ›

Dimmer Types Comparison Chart
Dimmer TypeEnergy EfficiencyCost
Magnetic Low Voltage (MLV)Moderate to highCan be more expensive due to transformers
FluorescentMore energy efficientHigher initial cost
Light Emitting Diode (LED)Highly energy efficientHigher upfront cost
2 more rows
Nov 28, 2023

Can you put a dimmer on any LED light? ›

Although you can install a dimmer switch for LED lights, the technology is different than that of incandescent and halogen bulbs. You must ensure that the LED light is dimmable. If it is not indicated in the product description, then the light cannot be dimmed. It's as simple as that.

How many LED bulbs can you put on a dimmer? ›

A good rule of thumb is to allow 100W for each LED fixture so in this case, the 600W dimmer can handle only six LED fixtures.

What happens if you put a 60W LED bulb in a 40W socket? ›

Therefore, as long as the LED lamp's actual wattage and heat released is less than the socket or fixture rating, you should not encounter any issues. LED lamps do get warm, but they only emit a fraction (~15%) of the heat that an incandescent bulb emits.

How do I know if a bulb is dimmable? ›

There is a dimmer symbol on dimmer switches which indicate which type of dimmer switch it is and which type of bulbs it is compatiable with, this is usually on packaging of bulbs. The letters mean the following: If you see an R on the dimmer switch, this is compatiable with incandescent bulbs and 230V halogen bulbs.

What is the difference between a LED dimmer and an incandescent dimmer? ›

Analogue dimming, with incandescent bulbs involves controlling the current to dim or brighten the light, whereas LED lights use Pulse Width Modulation (PWM) which involves the light going through a cycle of being on and off, so fast that you won't be aware of it.

How do I know if my dimmer is compatible? ›

Check Your Existing Dimmer

The type of dimmer switch and it's minimum/maximum load range will indicate the compatibility with LED light bulbs. Trailing edge dimmers work best with LED light bulbs and leading-edge dimmers work best with traditional incandescent and halogen light bulbs.

Can you fit a dimmer switch to any light? ›

Can I install a dimmer switch for any type of light? You will need to check what kind of light is connected to the existing on/off switch. So long as the bulb is dimmable, it should be compatible with a dimmer switch. A dimmer switch can be installed anywhere that an existing on/off switch is already installed.

Do I need a 1 way or 2 way dimmer switch? ›

One or Two Way Switch

This means they will work for lighting circuits with one or two switches. In this case they can be used as either of these switches. For a circuit with an intermediate switch, ie. a circuit with three or more switches on it, the dimmer can only be used as a two way light switch.

What is a standard dimmer switch? ›

Dimmer Switches

A light dimmer is a kind of switch that can raise and lower the brightness of a light. Dimmer switches work with incandescent bulbs, halogen light bulbs, compact fluorescent light bulbs (CFLs) and some LED light bulbs (light-emitting diodes).

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