does this dimmer have 'push in' knob to switch the lights off or you can only turn?

...Boo! I think turn/twist on/off is a better design than push on - they often come on on full power, as left, which obviously shocks the light and often kills them (especially filament bulbs). But, it says these have 'soft start' and you can push them on with your shoulder when your hands are full. But, I'd rather have instant turn/twist on dimmers without the soft start delay. Turn on low load (10w minimum) don't seem to exist (cheaply). :(

What depth of wall box is required to mount this dimmer switch?

25mm wall box would be adequate depth for the wall box to fit the JQP401W

I have 4 5w LED bulbs(2 trafos in between), set in mode 3, dimming part is working, but regularly the lights start flickering, what can I do?

You need two things to dim LED lighting - 1) a 'trailing edge' LED dimmer - not a conventional dimmer (these have 'Leading edge' dimming, which is no good for LED) 2) dimmable LED bulbs (or dimmable LED bulb+transformer combination) If either of these is missing the LED bulbs will not dim properly and may well flicker too.

Can i use this with a standard bedroom light socket?

Hi Dafydd,Yes you can replace your ordinary light switch with this dimmer and replace your normal bulb with an LED or low energy lampin the same lampholder. I bought a Varilight dimmable low energy compact fluorescent to go with it, but found it to flicker at somebrightness settings. I tried all the possible settings on the dimmer to no avail. It may work better with an LED lamp, but I don't have any to try it with.Regards,Paul G

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Varilight LED Dimmer Switch - V-Pro Series, 1 Gang (Single), 1 or 2 Way, 0-120W (1-10 dimmable LEDs)

Varilight LED Dimmer Switch - V-Pro Series, 1 Gang (Single), 1 or 2 Way, 0-120W (1-10 dimmable LEDs)

Product ID: 55170171

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Details

Operation mode
ON-ON-OFF
Current rating
0.52 Amps
Operating voltage
230 Volts
Contact type
Normally
Connector type
Clamp
Brand
Varilight

💡0-120W dimming power

🔄1 or 2-way switching

🔇Eliminates dimmer buzz

Description

💡 Dim your lights, not your vibe — switch to smarter ambiance!

COMPACT SLEEK - Fits standard 25mm deep wall boxes with a clean, modern white finish
BUZZ FREE EXPERIENCE - Trailing edge tech eliminates annoying dimmer hum
VERSATILE INSTALLATION - Supports both 1-way and 2-way setups for flexible control
SEAMLESS AMBIANCE CONTROL - Smooth rotary dimmer for perfect lighting moods
ENERGY SAVVY COMPATIBILITY - Optimized for 1-10 high-quality dimmable LEDs up to 120W

The Varilight V-Pro Series LED Dimmer Switch offers precise dimming control for 1-10 dimmable LEDs up to 120W, with 1 or 2-way switching options. Designed to fit standard wall boxes, it features trailing edge technology to eliminate buzzing, ensuring a quiet, energy-efficient lighting experience ideal for both domestic and commercial spaces.

Specifications

Manufacturer	Varilight
Part Number	JQP401W
Product Dimensions	8.5 x 8.5 x 4.7 cm; 108 g
Item model number	JQP401W
Size	95mm x 95mm x 35 mm
Colour	White
Shape	square
Power Source	AC
Voltage	230 Volts
Wattage	120
Item Package Quantity	1
Type of Bulb	Light Fittings
Switch Type	2-way
Usage	Domestic & Commercial Applications
Included Components	Screws and Instructions
Batteries included?	No
Batteries Required?	No
Item Weight	108 g

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