thanks mate, im a 1st time grower and only know half the basics ive got three plants that spent most their life outside but now its winter and getting cold im putting them under a light but still not sure if its the right light i think its some sort of sodium/mercury/florecent kind of light, i have googeled what the light might be and thats what has been coming up,theres not any markings on the light to see what it is, Ive read on the net that you can use these lights, what do you think, I have just made a album on my profile with some pics of my closet grow, any tips? thanks heapz dude