Review on 🚤 DaierTek Waterproof Toggle Switch 12V LED Lighted Toggle Switch IP67 12 Volt RGB (Red Green Blue) 16mm Pre-Wired for Car Boat Marine - Pack of 3 by Keith Baker

They didn't specify the tiny connectors required. Also, you didn't mention that the light goes off when the toggle switch is on. I only found out about this and the size of the required plug in the FAQ area. I bought the plugs in the size you suggested, but they were so poorly made that the tab bent before I could fully insert the plug. You are very stupid not to include the wiring harness. This element is so small that when connecting each individual connector they are too close together. It also needs to be a bit bigger. I say that because it is a very attractive mug. I bought one to test and wired the light to turn on and off with the dash instead of a toggle switch. It looked very cool. Unfortunately I found that without the wiring harness it would be too difficult to replace all my current switches with this one. Too bad. Another case of bean counters designing a product, not real engineers.