I'm curious about which lights you have for your bright-light loving succulents? I have perles and despite my best efforts each year they always either stretch a little or the lower leaves don't get the same light, so they never look as happy as they could be after only about a month inside during winter when I have to keep them inside for about five months total. :/ Beginning to think Walmart's offering of grow lights need to make way for something better next year.
Each fixture I have has two linear 6500k T5 fluorescent bulbs. These bulbs are often labeled as ‘daylight’ or ‘grow’ bulbs. Each fixture provides light for a shelf space that is 36” x 18”, and most of my echeverias are directly under the fixtures. I would say they’re all between 3” and 6” away from the bulbs. They still lose some color and the lower leaves of the taller ones still droop a bit, but it’s still a FUCKTON better.