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Jim Lawrence Knowledge Base

Are LED Lights Dimmable?

First off, all light bulbs that say they are dimmable will dim if used with a corresponding dimmer switch. For many years LEDs have been the preferred choice because they are efficient, longer lasting and arguably offer a better quality of light. However, the technology in LEDs and the way they are designed, means they are not always compatible with your existing dimmer switch.

Traditional incandescent light bulbs used to reduce the amount of power going to the bulb filament, thus reducing the light emitted giving the dimming effect. Because modern LEDs use circuitry rather than a filament, conventional switches and some LED bulbs are unable to dim.

When deciding on dimmable bulb, it is worth noting that light bulb manufacturers will state on their packaging whether the LED bulb is dimmable and more often than not, these bulbs are compatible with your dimmer switch but that is not a 100% guarantee because of the amount of variants in brightness and fitting type.

Dimmed lighting scheme lifestyle
Rotary dimmer switch

About our switches:

  • All of our standard dimmer switches are 250w max. trailing edge dimmers, which are suitable for incandescent bulbs, good quality mains halogen bulbs and dimmable CFL bulbs.
  • Suited for good quality dimmable electronic transformers and good quality dimmable LED bulbs. Please note that our 250w trailing edge dimmers are not compatible with JVV 7w fire guard fittings but we can supply a suitable leading edge module on request.
  • Our dimmer switches are 2 way, ie can be used for switching lights from either one or two places, but the other switch needs to be standard rocker, dolly or on/off dummy switch.

If you need any further help or advice, then please do give our friendly sales team a call on 01473 826978. Alternatively, your electrician will be able to advise which option is best for you.