Just wondering if it would be possible to grow autoflowering plants with a 400w hps inside of a double rubbermaid box without burning plants. The rubbermaids are the 189 L size each so its actually quite a wide box and still fairly high. Dimensions of each box are 42½ x 21¾ x 17½"
So can I put a 400w hps in there without scorching plants.
So can I put a 400w hps in there without scorching plants.