Flexstar ETL Certified Flexstar HPS Grow Lights 1000 watt vs 1000W cool tube

Bron-Y-Aur Stomp

Well-Known Member
Got a few of these Flexstar grow lights and ballast, ive always used cool tubes, anybody have any experience with these, they are super expensive but because I can get the cool tube so much closer to the plants, when I take a LUX reading im getting a way higher reading from the cool tube then the Flexstar, its actually double, so what is the benefit ?
 
Top