Cactus and Tender Succulents forum: Winter protection and lights

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Name: Steve Claggett
Portland Orygun (Zone 8a)
Beekeeper Cat Lover
Sep 9, 2016 4:13 PM CST
I have this stand/greenhouse.

My tender semp collection fills most of it's capacity. I plan on keeping it under the house eves this fall/winter to keep it dry. I'm looking at 24" 2 t5 65k bulb fixtures.

My plan is 4 fixtures, one at each level. What I'm not sure about is the heat output. It's possible to see temps in the teens in late winter. Input on this hair brain scheme.
Spectamur agendo
Name: Daisy
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Sep 9, 2016 9:09 PM CST
You will probably electrocute yourself. You need to find bulbs and fixtures rated for outdoor use. In your attempts to keep your plants dry, you may make them even wetter -- they will respirate inside your closed mini-greenhouse and turn it into a soggy rainforest. Think about ventilation and a fan to keep the air moving.

People I know using those little greenhouses are putting 4 foot bulbs vertically in the corners. I don't know anyone who has used them outside. They are popular as greenhouses for indoor orchid collections (plants that like humidity).

To answer the rest of your question, T5's are more efficient than T8's so put out less heat than T8's.

This is the one I'm using.
Name: Gene Staver
Portage WI 53901 (Zone 5a)
Herbs Annuals Hummingbirder Butterflies Garden Photography Cactus and Succulents
Birds Cat Lover Houseplants Garden Sages
Sep 9, 2016 9:12 PM CST
T5 HO are way more efficient than T5. The new T5 VHO are too expensive and too hot. Gene

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