Dicking with the spectrums and lumens is a good way to throw them into shock. Use the lights you have, or use the sun. Going back-n-forth is no good.

The plant was likely reacting to :
A) the heat from the sun.
B) the sudden increase in lumens and spectrums.
C) the UB light it was never getting before.
D) the pot sitting on the hot cement can kill bioactivity, and steam the roots.

Then there's the potential for bug issues...
Rusty Trichome Reviewed by Rusty Trichome on . Leaves all turned up in minutes.... This is my first grow...I only have 6 plants under a 400w hps. I would like to grow all year round, so I have a small grow room in my garage. I would grow outside, but I live a block from the beach and generally speaking it is always pretty foggy and you dont see the sun for most of the day! However, today the sun is bright and there is a nice breeze...I decided to let my little ladies get some real sun and good fresh oxygen today...the 2 bigger plants IMMEDIATELY turned there leaves up to Rating: 5