Live Stoner Chat New guy sayin', "Hi".

Without a doubt, heat is my biggest issue. Not from the light, but the room itself. I live on an island in the tropics and my roof is a 3" concrete slab with cinder block walls. Once the sun heats that slab it's hard to cool the room. I think a tent will help by isolating a smaller environment. I think the 600 will be the choice since it will be a dimable digital ballast. That seems to give me the most versatility and potential.
 
Look at the day/night cycles for your area, and if the cycle is right, right now you could possibly move the photo outside to induce flowering.
 
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