BLOW 24/7...

Sounds too hot. Keep the hot air OFF of them. BLOW across the tops all day and night....it makes for stronger plants, stems and branches.

UV isnt the problem....
HARDDON Reviewed by HARDDON on . Burning with 150 W MH ? Hello, to enhance my 250 W HPS lighting during veg, i added a remade 150 W MH very cold light. But, i noticed that the leaves after a few hours begin to burn a little on the sides. There is a glass board on the lamp to prevent from UV rays. I put a dome to protect my AK47 seedlings. Who knows what in the spectrum can hurt plants ? UV rays ? Or am i mistaken. Fhydro Rating: 5