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TRIAC 25w Dimmable Transformer2018-08-23T11:09:59+00:00

25-watt TRIAC mains-dimmable LED power supply

25-watt TRIAC mains-dimmable LED power supply - terminals open

25-watt TRIAC mains-dimmable LED power supply - terminal covers

Wiring Diagram

Wiring diagram for 25-watt TRIAC dimmable LED transformer

25-Watt TRIAC LED Driver

Dimmable power-supply, Constant Voltage
Commercial Grade

Availability: In Stock for next day delivery

This high-quality 25w TRIAC LED transformer offer mains-dimmable lighting control with no minimum load, and is available in two versions – 12-volt or 24-volt. Its TRIAC phase-cut dimming functionality means it can be used in conjunction with a standard household rotary dimmer-switch wired to the mains supply, just like a standard lightswitch! (Use InStyle’s own TRIAC wall dimmer/remote pack, or alternatively we recommend Aurora’s AU-DSP400X dimmer module and Varilight’s V-Pro series.)

Powered to drive up to 25 watts of InStyle LED strip lights, this transformer is ideal for feature lighting installations and small rooms. (Do make sure the voltage of the LED transformer matches the voltage of your LED tape!) The transformer has a slimline design, so it can be installed unobtrusively, and it is compatible with lighting control brands such as Lutron, HDL, Rako and Crestron.

TRIAC (TRIode for AC) power supplies are sometimes know as phase dimmers or phase-cut dimming transformers. To learn more about TRIAC dimming, please see our LED dimming support page.

Input voltage 180-240v AC. Output voltage 12v or 24v (2 separate transformer 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-25-12 (12 volt) / TR-25-24 (24 volt)
Product25 Watt Driver
Wattage Output:25 Watts
Voltage Output:12 or 24 Volts
Amp Output:2.08A (12V) or 1.04A (24V)
Voltage Input:180-240V~
Amp Input:0.28A (50/60Hz)
IP Rating:IP20
Warranty:2 Years
CE + RoHS Certificated:Yes
Length:155 mm
Width:54 mm
Height21 mm


Product Codes: TR-25-12 (12 volt) / TR-25-24 (24 volt)

ProductMax Length of LED Tape
5 Watt LED Tape5 Meters
7.5 Watt LED Tape3.75 Meters
10 Watt LED Tape2.5 Meters
20 Watt LED Tape1.25 Metres

25 Watt Dimmable Transformer Datasheet PDF

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25-Watt TRIAC Dimmable Transformer for LEDs by InStyle
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