To all those that want to know more about LUMENS, I just received this.
Still talking about Lumens?
It is a mystery as to why anyone in the grow light industry is still talking about lumens when referring to the intensity of their lights. LUMENS are a measurement of how the human eye perceives the intensity of the light source, not a measurement of how PLANTS perceive that light. Lumens are more common when talking about photography or lighting for an office space.
Boost Post 08/19/2016
AGSR answer to the.......
Why are the LED Lights so expensive?
A very good question so maybe this will help answer the
The amount of heat given off by the HPS is much higher than the LED lights. This will keep the grow tent, box, room at a cooler temperature. Maybe about 25 to 30 degrees.
You will be watering less and that means using fewer nutrients.
Why because the room temperature has been reduced.
With less electricity, water, nutrients, and always replacing the HPS Grow Lights (The LED will last about 10 years) will save you money FOR the long run.
So You will have an increase in your yield of crops, spend less on Grow Lights and save energy costs. I think that the LED Grow Lights is the right way to go. 0805/2016