Review on Jtron Automotive Relay Harness Set: 12V 40A 4-Pin SPDT With Interlocking Relay Socket For LED Light Bar Wiring Harness Kit And Push Button Switch by Ricky Gilbert

I bought these to install aux. switches into my truck without having to drill or do any permanent modifications to my interior. The switches are push on/push off, with illumination that changes brightness based on if the switch is on or off. You can pretty much attach the switch anywhere using double-sided tape (a small piece is included with the switch). Installation is only 3 wires, with helpful diagrams on the packaging if you've never installed a lighted switch before. Be sure to use a relay - these are rated to handle max. 200mv, I prefer using relays anyway for full power from the battery to the accessory I'm installing. For the price, the switch is pretty good. The only complaint I have is that the difference between brightness of the LED lights when the switch is on or off is not that easy to determine until you mentally remember what the brightness of "off" is compared to "on".