Day length lights only Spring into summr

[marylandmike]

I run totally on lights. Do you extend the time the lights are on in spring?

[estación seca]

It depends on what you're growing. Some orchids are triggered to bloom by night length, and others aren't.

There's not as much daylength variation in the tropics, compared to temperate areas. Some people do vary and others run lights 10-12 hours per day all year.