I have no fear of using any 120V lights or whatever outside, especially if they are outdoor rated. When using 120v stuff, I usually use a good exterior extension plugged into the 20a outlet on most power stands. Ihat keeps it all from using the rig wiring and plugs, and has separate circuit breakers grounds. For outside lights, we have a exterior remote control switch made for outdoor Christmas lighting. Lets us turn lights off from inside to keep from annoying neighbors at night, and back on if we need to look around during the night without going outside.
Just be sure to keep the ends of your power cord where they won't be in a puddle if it rains, and I try to shelter my outlets a bit if possible.
As we have a dog that needs to walked before bedtime, I have an aluminum clamp worklight that I usually clamp where it will not shine into others campsites if possible. It is bright, and lights a lot of area, so it is not used very much, only if needed. Usually clamped onto the latter at rear of MH.