Illuminates when switch is in the "on" positionRatings: SPST 16 Amp @ 125-250 VAC, 3/4 H.P. @ 125-250 VAC, 10 Amp @ 14V, 3 Amp @ 125VUL/CSA approvedCutout: .67" x .50"Outside: 1.285" x .830"