Hello Mr. Welsh,

it is Normal to strecth when you go from outside to inside... OUt door buds have much closer nodal growth.. the power of the sun can't be matched by a bulb.. so the plants stretch....

Keep the 600watt bulb as close as possible (without burning your foliage).. if you can have a fan blowing between your plants and the lights and have an exhaust fan drawing the heat away from your fixture/bulb.. you should be able to get that light 6 -10 inches from your foliage... this will give you huge buds.. equivelant to a 1000 watt HPS..

LIGHT PROXIMITY is one of the corner stones to being a GREAT indoor farmer...

and NOW you KNOWM


PS - use both the 400watt and the 600watt
Garden Knowm Reviewed by Garden Knowm on . how close to the light? how close should my 600 watt light be from my lovely budding sativa? currently on 7th week of flowering, also would 11 hours light and 13 hours dark be better for last few weeks of flowering? Rating: 5