Post by Carl on May 24, 2021 11:51:43 GMT -5
Aquarium/Pond Answers recommends our industry leading and research/experience based article dealing with PAR & PUR in aquarium Lighting
www.aquarium-pond-answers.com/2012/03/pur-vs-par-in-aquarium-lighting.html
Here is an excerpt:
The aquarium to the right is a planted tank utilizing (4) TMC Aquaray Growbeam Ultima 600's before and after pruning.
This growth happens in about 2 weeks.
Also used in the 2nd tank: 1500 TMC FSB Filter, AAP Sunsun canister, NilocG EI Ferts, AAP Wonder Shells (Courtesy Chris O'Hara)
Besides of course the measurement of output energy (PAR, also called Photosynthetic Photon Flux Density, which is a measure of the number of photons), Useful Light Energy/PUR/Optimum Wavelength has become one of the more important aspects of choosing an aquarium light since the advent of high end Aquarium LED Light Fixtures.
By high end I mean better and targeted emitter bins, advanced drivers/circuitry versus the many low end LED fixtures available (generally out of China), which essentially are not much better that household LED emitters (Christmas lights) daisy chained together with even much of the input energy wasted as heat energy before it even becomes PAR photons of energy.
Since even the best of fluorescent lights such as T5, T2, and SHOs still emit a considerable amount of light energy in light spectrums not targeted for photosynthetic life, acquainting oneself with this aspect of light energy is very important if you are considering a new light fixture, especially a high end LED (such as the TMC AquaRay).
www.aquarium-pond-answers.com/2012/03/pur-vs-par-in-aquarium-lighting.html
Here is an excerpt:
The aquarium to the right is a planted tank utilizing (4) TMC Aquaray Growbeam Ultima 600's before and after pruning.
This growth happens in about 2 weeks.
Also used in the 2nd tank: 1500 TMC FSB Filter, AAP Sunsun canister, NilocG EI Ferts, AAP Wonder Shells (Courtesy Chris O'Hara)
Besides of course the measurement of output energy (PAR, also called Photosynthetic Photon Flux Density, which is a measure of the number of photons), Useful Light Energy/PUR/Optimum Wavelength has become one of the more important aspects of choosing an aquarium light since the advent of high end Aquarium LED Light Fixtures.
By high end I mean better and targeted emitter bins, advanced drivers/circuitry versus the many low end LED fixtures available (generally out of China), which essentially are not much better that household LED emitters (Christmas lights) daisy chained together with even much of the input energy wasted as heat energy before it even becomes PAR photons of energy.
Since even the best of fluorescent lights such as T5, T2, and SHOs still emit a considerable amount of light energy in light spectrums not targeted for photosynthetic life, acquainting oneself with this aspect of light energy is very important if you are considering a new light fixture, especially a high end LED (such as the TMC AquaRay).
