Hey Guys 👍🏻
Quick question, I have my light (HPS - 250w) 40 cm above the plants - should I get the light lower? One of my babies has the leaves going up. I guess she is enjoying the light but I have doubts regarding the light distance.
Where the back of your hand feels comfortable for a minute your plants will be comfortable. At 15 inches your close to being at 600 watt height. 250 watt run much cooler than even a 400 watt and can be kept quite a bit closer. Cheers