Josh I saved two very special worsleya plants over winter by placing then under a grow light 24/7 for over four months not only did they recover and grow I have now moved them back alongside the main collection now it is spring, they have not looked back. During this time I also germinated and grew some species hippeastrum that also powered along with no darkness at all, this was never a long term situation and they are all now in the natural temps and light here, they now have to deal with whatever mother nature throws at them however I was so succesful with the grow light that I will use it again on some very special plants over winter next year and I won't be switching it off until spring. Kind Regards and Best Wishes Ron Redding Hervey Bay Australia