Thanks Roberta

Yes, in winter we have a very short day. I am already using a 160 W LED supplementary lighting fixture consisting of three super-strong CREE LEDs. But due to cold weather and additional lighting, conditions can be created for different plants in the same area. The hotter plants are near to the lamp to get warm, the more coolest plants are near to the window, there is cooler from the cold glass. During the day, the lamps will heat the air, at night everything will naturally cool down, so the temperature differences that are useful for flowering.
On the new balcony, I will continue to use the old 160 W LED lamp, add another 200 W LED for large Cattleyas, and another 150 W LED light for the phalaenopsis wall, where, in addition to the "gems" from Mituo, Cattleya aclandiae, bulbophillums, maybe a couple more Cattleya.