![]() ![]() You can expect to pay £15 plus for a dimmable LED bulb. If you’re buying your LEDs online then the product description should clearly state whether the bulb is dimmable or not. ![]() Packaging should clearly mark whether the bulb is dimmable or not. Not all LED bulbs are suitable for dimmer switches. When it comes to replacing the switch, it’s best to ask a qualified electrician to do this for you and you should expect to pay around £60 maximum for the switch to be replaced. If it doesn’t, for example it may flicker or not dim at all, then it’s likely you have a trailing edge dimmer which will need upgrading. The best way to do it is to fit an LED bulb and see if the dimmer switch works with it. Testing which type of dimmer you already have involves a bit of trial and error. How can I find out what type of dimmer switch I already have? You can find out more about the science behind dimmer switches with this handy guide to How Dimmer Switches Work.Trailing edge dimming provides a much smoother transition in light and is absent of any buzzing when dimming LED lighting making it the best option for most modern lighting circuits. These modern style dimmers offer a lower minimum load so are more suitable for use with LEDs and CFL bulbs.Leading edge dimmers work fine for halogen or incandescent bulbs as these bulbs have a much higher wattage than LEDs.This is because even when the switch is set to dimmed, the voltage will still be enough to power LEDs and CFLs light bulbs fully & will most likely cause a buzzing sound as a result. They usually have a high minimum wattage load which means they are not suitable for LED or CFL bulbs.These are the original dimmer switches designed for use with incandescent and halogen bulbs. The light is distributed evenly offering wide and soft lighting which can be switched to full brightness instantaneously.There are two types of dimmers: Leading edge dimmers To help you get to the bottom of the issue, let’s take a look at: Potential reasons a dimmer switch might not dim. An overloaded or faulty dimmer can also cause it, but also it may be a problem with the wiring. How do dimmers work?ĭimmer switches work by reducing the amount of voltage to a light bulb by rapidly switching the voltage to the bulb on and off, which results in a lower level of light output. The most common cause of dimmer powering lights but not dimming is an incompatible bulb. LED bulbs need a specific type of dimmer switch to work properly, and you need to be using specific dimming bulbs. Dimming LEDs is not as straightforward as dimming halogen or incandescent light bulbs. ![]()
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