Ring Pathlight Won't Stay Bright

I have (2) pathlights that I’m using to illuminate the numbers on my mail box. I have the brightness set to max on both, but they only emit about 25% of brightness. I can turn the brightness down, then back up they will momentarily get brighter, but after 30 seconds or so get dimmer.

Will the lights not operate constantly at max brightness?

Hi @user48515. Are these Smart Lights on a Light Schedule? Some settings will only allow maximum brightness for a time to increase battery life.