This Universal on/off switch also features a momentary switch which will work with any power supply or flasher that requires a momentary to change flash pattern.

It comes complete with cable loom (8 feet long on the long cables for the lightheads power and pattern change, 3 feet on the earth and power feed (which includes a fuseholder and underdash mounting bracket.   

These are ideal for use with Whelen strobe power supplies, Universal Flashers, Able2 LED Flashers and kits and our Radiant, Xtreme or Mini-Xtreme LED heads.   

They will save you time and money when it comes to the installation.

Not many people write reviews on these but one customer wrote the following:

You might wonder why I'm going to the trouble of reviewing a switch?

Well, I got myself one of these to run a set of grille lights, and I was more than impressed to find, upon opening the box, that this is not just the switch as shown in the pic, but a cable loom also, (8 feet long on the long cables for the lighthead power and pattern change, 3 feet on the earth and power feed (which includes a fuseholder)).

The cables are crimped and already attached to the rear of the switches, it really is ready to go, just attach to power and lights, and fix to the dash.

Well made, and even better value for money than the listing suggests.