40 Watt Dimmable Transformer for LED Strip Lights

40 Watt Dimmable Transformer - open terminals for wiring


Product Video

TRIAC transformer & dimmerSetting up your TRIAC transformer

Wiring Diagram

40w Triac Dimmable Transformer Wiring Diagram

40-Watt TRIAC LED Driver

Dimmable power-supply, Constant Voltage
Commercial Grade

Availability: In Stock for next day delivery

InStyle LED’s 40-watt TRIAC dimmable transformer is a reliable commercial-grade LED power supply, available in 12v or 24v models with no minimum load. Fully enclosed, it can be installed in confined spaces and most other locations, and it produces minimal heat output – so it’s safe to touch.

TRIAC (TRIode for AC) power supplies, also know as phase dimmers or phase-cut dimming transformers, are an easy way to give your LEDs dimming functionality. Wired between your LEDs and your controller, they take in mains 240v power and manage the power output, eliminating the need for an LED receiver. To learn more about TRIAC dimming, please see our LED dimming support page.

This power supply can drive any of our LED strip lights and other lighting products, up to a maximum of 40w (make sure your LED voltage is the same as the voltage of the transformer). It can be dimmed using many standard household rotary dimmer switches (use InStyle’s own TRIAC wall dimmer/remote pack, Aurora’s AU-DSP400X dimmer module or Varilight’s V-Pro series.), and it’s also compatible with Lutron, Rako, Crestron and similar lighting control systems.

Input voltage: 100-240v AC. Output voltage: 12v or 24v (2 models). This item is RoHS compliant and conforms to all UK safety standards.

  • Commercial Grade Transformer
  • Ideal for internal use
  • Compatible with Lutron, Rako, Crestron and other lighting control systems
  • Product Codes: TR-40-12 (12 volt) / TR-40-24 (24 volt)
Product40 Watt Driver
Wattage Output:40 Watts
Voltage Output:12 or 24 Volts
Amp Output:3.3A (12V) or 1.6A (24V)
Voltage Input:100-240V~
Amp Input:1.0A (50/60Hz)
IP Rating:IP22
Warranty:2 Years
CE + RoHS Certificated:Yes


Product Codes: TR-40-12 (12 volt) / TR-40-24 (24 volt)

ProductMax Length of LED Tape
5 Watt LED Tape8 Meters
7.5 Watt LED Tape5 Meters
10 Watt LED Tape4 Meters
15 Watt LED Tape2.5 Metres
20 Watt LED Tape2 Metres

34 Watt Dimmable Transformer Datasheet PDF

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