Your browser isn't supported
It looks like you're using an old web browser. To get the most out of the site and to ensure guides display correctly, we suggest upgrading your browser now. Download the latest:

Welcome to the MSE Forums

We're home to a fantastic community of MoneySavers but anyone can post. Please exercise caution & report spam, illegal, offensive or libellous posts/messages: click "report" or email forumteam@. Skimlinks & other affiliated links are turned on

    • Cardinal-Red
    • By Cardinal-Red 4th Dec 17, 4:03 PM
    • 646Posts
    • 151Thanks
    What is a non-dimmable light?
    • #1
    • 4th Dec 17, 4:03 PM
    What is a non-dimmable light? 4th Dec 17 at 4:03 PM
    We bought two lights from B&Q that use G9 bulbs:

    We then put 5 9W bulbs in each, which gave us an incredibly bright room.

    Our solution was to fit a dimmer:

    To my untrained eye this seemed to be the correct match for us and the W load was within range.

    However when we fitted the switch, the metal plate got so hot that it was impossible to touch. Also the "on/off" switch did not work consistently.

    My first instinct is a broken switch, but we then noticed on the light itself it says non-dimmable; the bulbs however are.

    I had no idea there was such a thing as a non-dimmable light, instead thinking it just distributed the power sent to it by the switch.

    So before I spend more money on another switch, is it possible that a light fitting can be "non-dimmable"?
    The above facts belong to everybody; the opinions belong to me; the distinction is yours to draw...
Page 1
    • daisleybur
    • By daisleybur 4th Dec 17, 4:10 PM
    • 15 Posts
    • 20 Thanks
    • #2
    • 4th Dec 17, 4:10 PM
    • #2
    • 4th Dec 17, 4:10 PM
    Yes, to have dimmable light, both the light bulbs, switch and light fitting all need to be dimmable.
    • Grenage
    • By Grenage 4th Dec 17, 4:11 PM
    • 1,392 Posts
    • 1,315 Thanks
    • #3
    • 4th Dec 17, 4:11 PM
    • #3
    • 4th Dec 17, 4:11 PM
    LED bulbs won't be dimmable unless explicitly stated; just swap them for dimmable models. The light fitting is unlikely to contain more than a connector block to split the power, so that shouldn't be an issue.
    • EssexExile
    • By EssexExile 4th Dec 17, 4:43 PM
    • 2,678 Posts
    • 1,848 Thanks
    • #4
    • 4th Dec 17, 4:43 PM
    • #4
    • 4th Dec 17, 4:43 PM
    That dimmer you link to is for LEDs only but I think you have halogen bulbs.
    Tall, dark & handsome. Well two out of three ain't bad.
Welcome to our new Forum!

Our aim is to save you money quickly and easily. We hope you like it!

Forum Team Contact us

Live Stats

2,351Posts Today

9,188Users online

Martin's Twitter