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LED bulbs are available on Amazon for less than $4.00 each. These are sold in packs of 10 with each bulb 5000K (Daylilght) or 2700K (Soft White) and put out 1600 lumens. The issue of using LED store bought bulbs was previously discussed in 2013 but the automod would not let me link. The...

There is little information in the search feature I could find about 1. Fan placement in this type of setup. This is beyond the basic argument to 'push cold air' or 'pull hot air.' 2. The effect on air flow on a 25 foot 6-inch tube vs. the effect of air flow given a 6 inch fan connected...

Greetings one and all. Question about fan placement, ventilating the grow room and cool tube/Air Cooled hoods. I have a 12 X 6' room (72 Sq Ft and about 720 Cubic Feet) with 3 1,000 watt bulbs burning bright. Needless to say the temps have been in the 90's....BUT the Cool Tubes are finally...