Group multiple RGBW lighting products to run everything on a single control box! This controller can handle up to 10 amps of current per circuit, allowing for more Metra or Heise LED lighting products. Need to go even bigger with your RGB or RGBW lighting? The mobile app also allows for multiple Metra control boxes to be grouped together and installed within the same system. Four triggers can be programmed to any color, so you can activate the lights for your turn signal, brake light, reverse lights, and more! The control box is weather-resistant with conformal-coated circuit boards so that you won't have to worry about it holding up to the elements. This control box is required for the operation of RGBW lighting products.