

💡 Dim your lights, not your vibe — upgrade to smarter ambiance today!
The BG DM400AP is a leading edge LED dimmer module designed for easy replacement and upgrade of existing dimmer switches. Compatible with multiple BG series and Nexus ranges, it supports a wide range of lighting types including LED, halogen, CFL, and incandescent lamps up to 400W. Featuring 2-way push on/off control, soft start, silent operation, and overload protection, it delivers smooth, energy-efficient dimming with straightforward installation.
| ASIN | B0CVNC75ST |
| Batteries Required? | No |
| Best Sellers Rank | 13,013 in DIY & Tools ( See Top 100 in DIY & Tools ) 149 in Switches & Dimmers |
| Colour | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (53) |
| Date First Available | 14 Feb. 2024 |
| Included components | Dimmer Module |
| Item Weight | 50 g |
| Item model number | DM400AP |
| Manufacturer | Masterlec |
| Part number | DM400AP |
| Product Dimensions | 4.5 x 2.5 x 6.2 cm; 50 g |
| Switch Type | 2-way |
| Wattage | 400 watts |
A**R
Dimmer switch
Arrived in good time. Fitted it to existing fitting. Works perfectly
P**Y
Perfect!
Perfect! Direct replacement for a faulty switch - easy to install with common sense and the electricity switched off. V happy 👌
P**W
dimmer mounting
I have a twin dimmer swtichplate on which one of the dimmer units could no longer be firmly held to the cover plate. The dimmer was fine but the mounting not so. This fixed that without undue issue and works properly.
F**0
Works fine but buzzes when driving LEDs at mid to high brightness
I bought this to replace an LED dimmer from a well-known brand with a sticking on/off switch. It fitted the old front panel easily. It also seemed to dim the LEDs okay, but unfortunately made an easily audible buzzing noise from mid to high brightness. This is a real shame as the push on/off action is much softer than that on the old switch, so I was optimistic about its lifetime.
J**E
Don't use 2nd hand dimmer switches
Replaced like for like easy to fit works better than the old one .Well I say old one it was relatively new according to the electrician,but I reckon he put and old one on that had been in situ for a while from another job. Replaced two of these now and all new ones bought of exactly the same make have all lasted longer than the ones the electrician installed in the first place .
D**R
not durable
Installed september 2025, failed suddenly december 2025. Original lasted since 2020. Worked perfectly up to that point. I want an easy life, so will do without dimming in the future.
K**T
Good Product
Good quality product easy to fit and great for value.
C**N
Did the job
Did the job ojlaiy.
Trustpilot
1 month ago
2 weeks ago