Ring photocell

I searched and cannot find such a device as a ring photocell, or anything I could use to accomplish my goal. Maybe someone can help me out. What I want to be able to do is have some LEDs above my kitchen cabinets, but I want them to automatically come on when it's dark, hence the need for the photocell. Walk in to the kitchen, flip on the light, they go off. Leave, turn off the light and it's night time, they come back on. Seems like an easy device to come up with, just a simple photocell plug that when it looses light, a task can be created to then flip on the LEDs. Looked in to making my own photocell setup hooked up to power to run them, then I thought it'd be a perfect thing for Ring to have. Hook me up Ring, make this easy on me!