Hey i would enjoy if u write in every week the distance from Lamp to Plant , i have the same and its difficult for me to know how much power and what distance =)
@WhiteVz, Hi, I am keeping the lamp at a distance of 25cm. The lamp is now running at 50 watts after repotting. I also have an app to measure PPFD but I dont know how accurate it is (Photone on Iphone). If you want, I can post the measurements :)