HDI1S - Varilight 1G 1W 400W Dimmer Dimension Screwless Iridium-Black

Varilight™ dimmer switches have an industry-wide reputation for exceptional performance, long life and innovation at attractive prices. Like all our products these dimmers are designed to meet the latest European Safety Legislation.


It is important to select the correct dimmer switch for your application so please read the following information carefully.

Our standard dimmers are recommended for mains voltage lighting only, although they can also be used on low voltage applications but the Intelligent (IQ) Dimmer is best suited for these applications.

The lights are dimmed by a rotary control knob and turned on and off by a rotary on/off action.Rotary on/off dimmers are only suitable for 1-way circuits. When selecting a standard dimmer add up the wattages of the bulbs you wish to dim and choose a dimmer with a suitable maximum load rating.

1 way Rotary dimmers can be used for mains incandescent GLS lamps (standard mains light bulbs), maximum load as specified on the dimmer. It can also dim GU10 or similar Hi Spot Mains Halogen lamps (only use quality UK supplied lamps) maximum load as specified on dimmer. [Please note by using Touch/Remote Dimmers there is a zero risk of damage in case of lamp failiure and a dramatically improved lamp life].

If you are using the dimmer with quality low voltage transformers such as Varilight™ low voltage transformers (product codes: yt70, yt105, yt150, yt250) you can control them up to maximum load as specified on the dimmer. If you are using other low voltage transformers, not made by Varilight™ we recommend only to control up to 5 low voltage transformers per circuit, as long as the total load does not exceed maximum wattage stated on the dimmer. [Noise levels may vary depending on type, quality and quantity of transformers used].

You are not able to use Rotary Dimmers on Wire Wound Transformers or fans and other Inductive Loads (for these products see Intelligent Dimmers, Touch/Remote Dimmers, and Fan Regulators).

If you have any questions relating to the 1G 1W 400W Dimmer Dimension Screwless Iridium-Black (stockcode HDI1S) that are not answered below please ask a new question. Alternatively you can use the contact form to speek to a member of the 1stopelectrics sales team.

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