The illuminated rocker switch is a fantastic choice when a multi-function switch is needed. The switch provides needed light and an economical and space-saving alternative to multiple switches. The rocker switch rocks from on to off positions and from on to off to on positions. It fits into rectangular mounting holes that measure 11/8 in x 7/16 in. The switch is incandescent and glows blue with terminals measuring 1/4 in. UL listed and CSA certified switch is designed for indoor use.