On/Off Switch for Transformers - 2.1mm plugs

on/offT Switch
On/Off Switch for Transformers:
with 2.1mm DC connectors male and female
1 Amp
60mm x 18mm x 20mm high
Requires a 2.1mm DC to screw terminal adaptor (add as an extra if required)
If bought with a transformer already you only need 1 adaptor
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A simple on/off switch to go between a transformer DC 2.1mm connector and your LEDs / LED strip(s).  Makes it easy to turn lights on or off without having to unplug the transformer from the mains socket.


  • Material: plastic and metal
  • Length: about 30cm
  • Colour: Black
  • With switch on / off button on the cable
  • Female DC Connector Size: 5.5mm x 2.1mm
  • Input Voltage: DC 3-12V
  • 1 Amp 

Requires 2.1mm screw terminal adaptor to connect to LEDs available here

A transformer 2.1mm DC plug goes into one end of the switch and the LEDs are plugged into the other end via the 2.1mm adaptor (sold separately)