Get-Lit® Power Box Glow Cup 2 Options either a Stand alone unit or one a Pre assembled with switch. Made to Be mounted on a Power Box, or on a custom Console Hole for Glow Cup needs to be 2.5in and Hole for Switch needs to be 1in. Has a nut plate to keep it sturdy on this surfaces, or can be used on thick material up to .25in. 4 Stainless Steel Machine Screws for a clean look, that wont get rusty. Connects to Fused 12v DC, (Red+), (Black-)