I'm not sure if this helps ...
Maybe in China still the all-mighty "magic spectrum " remains unknown ...
but for sure ,in Taiwan ,they know plenty more ,than the chinese .......
https://www.google.gr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=42&cad=rja&uact=8&ved=0CB0QFjABOChqFQoTCMey5sL14scCFQZtFAodeNwH-Q&url=http://www.mdpi.com/1996-1944/8/8/5240/pdf&usg=AFQjCNFqudWbItH66ZYJLt6UvFMJZZ_WyQ&bvm=bv.102022582,d.d24
.....
Althought the phrase
" Although the use of artificial light such as torch light to trigger an early
blossom had been reported in ancient China nearly a thousand years ago ..."
Makes you wonder ....
* photosynthetic action spectrum resemblance (SRPAS)
photosynthetic action spectrum (PAS)
( ...) It is noteworthy that plants do absorb green light to some significant
extent, e.g., the absorption of green emissions at 555 nm, for example, is 26% of the peak absorption in
the PAS.
Furthermore, the energy absorbed in the green light region, i.e., from 495 to 570 nm, measures
17% of the total energy absorbed by the photosynthetic action spectrum.
This implies that the green
light-dominant mid-wavelength emission is not to be ignored in plant growth [48].
The high spectral resemblance may be attributed to the employment
of a twin-peak blue emitter
thatnerates two broad-bands covering the short- to mid-wavelength regions, and the employment of a
diffused mono-peak red emitter that generates a relatively wide broad-band extending from the mid- to
long-wavelength regions. In addition, an over-90% spectrum resemblance can also be obtainable,
provided a deeper red emitter is incorporated, as shown in Figure 3b.
It is interesting to find that the typical LED lamps (Figure 4a) show a SRPAS higher than that of the
plant growth-specific LED. That is because the light sources of the former emit a broad band of light
ranging from 470 to at least 780 nm and, hence, a much wider overlap with the PAS results in the
mid-wavelength region, although the overlap is somewhat lower in the red emission.
To improve on this, the inclusion of more red and blue emissions are suggested in typical white LED
lamps. For example, the SRPAS can be increased from 60% to 91% as two additional blue and red LEDs
peaking at the vicinity of the respective absorption peaks of the PAS are employed. (Figure 4b).
(....)
So ...
These folks seem to know pretty much their shit ,ehh?
..... they seem to know ,oh yeah ......
How come in China you did not .?
?
The 80's are over,mate ...
History .Gone ...
For good ...
.....
425nm x3
445nm x9
450nm x6
475nm x4
480nm x4
640nm x7
660nm x14
675nm x7
730n x2
6500k x2
12000k x2 (<==== !!!! Ain't that known also as "blue " ? )
>Oh my ....My Gawd ....
...
Wher's the dried frog leggiess and the worm-spit tincture ?
Without them ,yain't gonna be doin' anythin' right ,son ...
Better yet ,trust the Taiwanese ...
They seem to know ,much better ...
