Any LED outdoor string lights should last.
I've had my set for 3 years and it's fine. What I like most about LED is you can string tons of them together (even though I usually go over the number you're supposed to limit on the regular lights).
So what does everyone here do for outdoor decor?
I usually have a string of white icicle lights on the first floor (I ain't climbin' no ladder), some multi-color LED lights on the shrubbery, and an air blown lighted thing (not going to be specific so I can't get stalked).
I been trying to find a Nativity scene but to no avail (I've seen some wood carved ones at other houses).