After replanting my stretched week-old plant I bought one 75 watt philips agro-lite which is around 7 inches from the top of the plant and it seems to be working decently well. Using these forums I found that using this light isn't the best because of the heat it produces. I have read articles that say HID bulbs are the best. Should I switch and if I should what HID bulb should I buy, keeping in mind that I don't want to spend too much money at this point? Right now I am growing one plant with one light as I want to fully understand the growing process fully before growing multiple plants. Also I don't have a large enough set up to have multiple lights at the moment.