The switch and indicator lamp can be viewed through the transparent flexible cover membrane which also allows operation of the switch. The IP rating of this unit means that it is truly weather (and ant) proof. Also, the box would accept a standard fused switched connection unit if the supplied one was to fail, simply by removing four screws inside. The knockouts are easy to remove (and replace if necessary) and the resulting holes accept standard conduit fittings without any problems. My one concern is the UV resistance of the flexible transparent membrane in full sun for part of the day. Only time will tell!