HPS lights are like the original setting for grow rooms. I don't think people are trying to reinvent the HPS I just think they are finding different ways to grow. Believe me I am with you, I would never run ALL LEDs. But in conjunction with an HPS? What could it hurt? Most people are turned off when they see the price tag and that is understandable but look at everything in our market that is NEW. When products come out for the first time I bet you they are ridiculous in the price tag. For example, I bet when the HPS came out everyone was like, "you can't imitate the sun." and now look almost everyone growing uses some sort of high intensity lighting. I am not trying t argue just name a point. Mot people think LEDs suck....they don't! Give LEDs a chance like we all did HPS and I believe we will see some amazing results.
I will try to find the thread I was reading earlier yesterday and t was speaking of how led lights are more easily absorbed (researched by a 3rd party) then any other light. The only thing they lack according to the article is luminosity. That is why I believe and will be using LEDs with my HPS.
True... In conjunction with an HPS would be fine but anything else would be retarded in my eyes... I have done a little looking into LEDs and yes they do lack the luminosity like CFLs. I have always thought if a CFL or LED is your primary light then it is time to go back to the drawing board or grow outdoors.... My opinion though....
Some interesting info....
Light intensities that exceed their photosynthetic capacity cause slight stress.Thus even under conditions which may not generally be considered stressful, stomatal conductance can substantially restrict CO2 entry into leaves, rendering even moderate irradiances in the top of a crop canopy in excess of photosynthetic capacity.
Irradiance is the power per unit area radiated by a surface. The
SI units for all of these quantities are
watts per square meter…..
When environmental conditions prevent the maintenance of a high capacity for photosynthetic and photorespiratory carbon metabolism to utilize absorbed light, the
likelihood for the photosynthetic generation of
biologically damaging molecules including reduced and excited species of oxygen, peroxides, radicals, and triplet state excited pigments
increases dramatically. Although some plants can reduce the amount of incident light that is absorbed through strategic leaf and chloroplast movements, rapid reduction in light absorption appears to play only a minor role in the challenge of coping with excess light.