Dj_Greenhouse
Well-known member
This doesnt seem to me like a HPS spectrum. HPS has much more orange and yellow and less blue and red. This is LED spectrum.the more proach of the emmerson effext is hps
This doesnt seem to me like a HPS spectrum. HPS has much more orange and yellow and less blue and red. This is LED spectrum.the more proach of the emmerson effext is hps
only the part under the white is for the plant of all the light produceOnly 30%? Where did you get that number from? Anyway, I dont think its that easy. LED lights for sure also emit heat since there is no process on earth without energy losses. Therefore LEDs require cooling units. Also the amount of energy in the different photons is not equal. To produce a blue photon it takes more energy than to produce a red photon and red takes more energy than infrared. So if you replace HPS by LED you basically replace a lot of infrared radiation by more blue and more red, which consume more energy to be emitted. So the relation is not linear, meaning that if you remove 50% of the infrared radiation you will not be able to get 50% more PAR light with the saved amount of energy.
I think you got something wrong bro. The colored surface is the mc cree curve and the white line is the HPS spectrum. The mc cree curve describes the maximum efficiency with which photons can be converted into chemical energy during photosynthesis. To me it looks like most of the spectrum is in the PAR range, except the relatively large peak all on the right. That peak is infrared radiation, so heat.only the part under the white is for the plant of all the light produce
Yes LEDs have been around for a while, but compared to other light sources used in horticulture, like MH and HPS, that were around for decades, LED are a rather new technology.Cannabis Grow Lights: LED Vs HPS - Zamnesia Blog
its fun they say led its' new but i buy my in 2006 lol
but if you look the advantage
so 1000 true watt led produce just as much heat as an hps . However it is not concentrated at one point like hps. Rather over a larger surface area which with appropriate heat sinks will dissipate the heat more evenly.
A +/- 640qatt led produces as much as a 1000w de hps in a 5×5 footprint I believe . Less watts means less heat . Watts are the measurement you need to look at for how much heat is added to the room so 1000 true watt led produce just as much heat as an hps . However it is not concentrated at one point like hps. Rather over a larger surface area which with appropriate heat sinks will dissipate the heat more evenly.
New technology- similar to the difference between analog and digital. Less heat, more efficient. LED not standardized depends on diode type and population size based on manufacturer spec....Their performance is much harder to pigeonhole because they are all over the board...