
MLA Knightsbridge SF2191PC Screwless 1G 2-way 10-200W (5-150W LED) trailing edge dimmer - Polished Chrome
SF2191PC
1G 2-Way Trailing Edge Dimmer Switch (10–200W / 5–150W LED) – Polished Chrome, Versatile Dimming with Screwless Style
This Screwless 1G 2-Way Dimmer Switch in Polished Chrome is designed for smooth dimming of a wide range of lighting types including LED, halogen, and incandescent. Featuring trailing edge technology with flicker control and a trimming function, it offers reliable, modern performance for residential and commercial installations.
- Wide Load Compatibility: Supports 10–200W incandescent, 10–150W halogen, and 5–150W LED dimmable lamps.
- 2-Way Control: Allows lighting control from two locations—ideal for hallways or multi-entry rooms.
- Rotary & Push On/Off: Simple operation with a smooth rotary dimmer and integrated push switch.
- Advanced Protection Features: Built-in anti-flicker, overload/overheat protection, and inrush current limiter (ICL).
- Customisable Dimming: Switchable between trailing and leading edge with a trimming function for fine-tuning dim performance.
Technical Specification
- Type: 1G 2-Way Trailing Edge Dimmer
- Load Capacity: 10–200W incandescent / 10–150W halogen / 5–150W LED
- Control Type: Rotary action with push on/off
- Features: Anti-flicker, trimming, overload/temperature protection, switchable trailing/leading edge
- Finish: Polished Chrome
- Mounting Box Depth: Minimum 25mm
✅ Achieve smooth, safe dimming across a variety of lamps with this feature-packed trailing edge dimmer—ideal for precision lighting control!
NB: PLEASE CHECK WITH LAMP MANUFACTURER FOR COMPATIBILITY

Range | MLA Knightsbridge Screwless |
Product | Dimmer Switch |
Type | Trailing & Leading Edge |
Number Of Gangs | 1 |
Face Colour | Polished Chrome |
Rotary ON/OFF | N |
Push ON/OFF | Y |
Leading Edge | Y |
Trailing Edge | Y |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.