diff --git a/code/modules/power/smes.dm b/code/modules/power/smes.dm
index f8d541a2589..b615b49f932 100644
--- a/code/modules/power/smes.dm
+++ b/code/modules/power/smes.dm
@@ -388,6 +388,10 @@
 			update_icon()
 		if("tryoutput")
 			outputting(!output_attempt)
+			if(output_attempt)
+				playsound(loc, 'sound/effects/contactor_on.ogg', 50, FALSE)
+			else
+				playsound(loc, 'sound/effects/contactor_off.ogg', 50, FALSE)
 			update_icon()
 		if("input")
 			var/target = params["target"]
diff --git a/sound/effects/contactor_off.ogg b/sound/effects/contactor_off.ogg
new file mode 100644
index 00000000000..d545cb7eff0
Binary files /dev/null and b/sound/effects/contactor_off.ogg differ
diff --git a/sound/effects/contactor_on.ogg b/sound/effects/contactor_on.ogg
new file mode 100644
index 00000000000..4db92aa108d
Binary files /dev/null and b/sound/effects/contactor_on.ogg differ