This illuminated wall switch has a voltage rating of 120/277V AC, and an operating temperature range of -40 Degrees F to 75 Degrees C. It is: impact resistant, plus it measures 1.4 inch W x 1.5 inch H. This illuminated wall switch meets the standards for UL. It is white, and has 14 AWG minimum wire size to 10 AWG maximum wire size. This illuminated wall switch features: automatic self-grounding staple.