On one particular blog I follow, a woman used a foil lined tent for her lights and plants. What was interesting to me was how healthy and sturdy her milkweed plants looked. It was probably due to the extra lighting and heat they were getting from the foil tent.
I didn’t want to buy a foil lined tent, but I decided to buy some “Double Bubble Reflective Foil Insulation: (48 in X 10 Ft Roll)” from Amazon. I cut it into two sheets which I used to cover my four shop lights. At $27.00 the cost per light was around $7.00.
I cut some slits in the middle ends to accommodate my pulley system for raising and lowering the lights from the basement ceiling.
Butterfly Gardening 