Lippert's Treadlite power step ties into your RV's entry door so it extends when you open the door and retracts when you close it, cutting out the manual step some campers still have to deal with. An integrated LED lights up automatically as the step extends, which helps a lot for late arrivals or after-dark bathroom runs.
This listing is the 30-inch single-step configuration in black; a hold-cycle switch lets you leave it extended at the campsite, and the step retracts automatically when the engine starts.