W
White WidowMaker
Guest
A friend of mine bought some MH lights not for growing. I was looking at the boxes and the lamp is MH 150 watts, and the sylvania lights say "UV STOP" in red on the box.
Does this mean they are still good for growing? Or does the UV STOP prevent the UV rays and therefore prevent usefulness for growing?
Does this mean they are still good for growing? Or does the UV STOP prevent the UV rays and therefore prevent usefulness for growing?
