HSP is a kind of HID. that is the type of bulb. You want to use HPS bulbs for flowering and MH for Veg. How many watts is the HID you Have? How many plants?
bigworm1922 Reviewed by bigworm1922 on . HID's? are they worth using? iv got HID lights that came of my bike, there 8000K, & make my CFL's look cack! lol so should i use it? its only one....so far, but do have another ;) tho they do give off some heat, so got a fan blowing on it, temp is 78F ish & humidity is 51% ish all sound ok to you lot? would like to know more about HID growing cause i cant find much on here, its all LED/CFL/HPS Rating: 5