Hello!

As beginner for succulent, I encounter a few problems which I'm not entirely sure what is it and how to fix it so I hope to seek for some advice here

1) I plant my succulent indoor, locate it to the brightest area hoping it will get sufficient indirect sun. However it has stretched, like the picture below.

2) Knowing those stretches is cause by the lack of sunlight, therefore I install a florescent light as a supplement (30W with 6400K light spectrum). Beyond that I bring it outdoor occasionally but stay in shaded area instead of expose to direct light.However I notice there is brown patches on the foliage after a while. Not sure why is that.

3) Lastly is this 'topsy turvy echeveria'. The foliage looks healthy and dense before the purchase. But after a few weeks it appears droop. If i'm not wrong they need more sun exposure? I did bring them out for sun light occasionally.

Any advice will be highly appreciated.

Thank you!