i was thinking about makeing a cool tube for my 150 w light. it just gets to hot even with a huge exhast fan and 2 fans inside. but than i read the cool tube cuts down on the light the plant will get. is that true? because that wont be good. 150 are not that big anyway so just wondering if that is true?
anybody have any ideas i am looking to do this today. but do not want to cut my lumens in half. i do not see how this would happen. just becuse u put it in the tube.
Well how many plants do you plan on growing? As for the glass blocking lumens I wouldn't think so and barley at all if any where blocked.