Yes. We had a couple nights that it got down to 34, so I rolled them inside.
I need to do some work to make tiers on the shelves. I bought a lot of new ones over the last few months as Golden Gate Orchids is going out of business. In doing so, I have some that are right in front of the other, and they are not getting enough light. It's a project I will tackle soon, I hope. They are fine now but will bloom better when I do.
Here brand new LEDs just arrived . I only set them up to verify the functionality. I'll fix them rightly when I'll set them in the orchidarium
They are 100 cm long and give 2000 lumen every one: total amount 12000 lumen.
I have two tanks with 4 ft X 4 tubes Hydrofarm Designer T5 HO fixtures just sitting on couple two-by-fours above them. At first I had all tubes in, but it was way too much light, I burned few phals, so I kept removing tubes until plants started to look comfy. Now my smaller tank has only one tube, larger one - two tubes.