The round hole design make the installation much easier than traditional rocker switches that typically require specialized tools or a lot of time to trim the rectangular cut out, whereas these switches only need a 1/2" round mounting hole.

Switch Name: Rocker Switch

Switch Type: SPST

Action: On / Off

Actuator: Rocker

Current Rating: 30A @ 12-14VDC

Mounting Hole: 1/2" Diameter

Terminal Type: 0.250" Quick Connect Terminals