photosynthesis spectrum at DuckDuckGo
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I was pretty excited to click. Then I saw only the 5700k was reviewed. Any plans for reviewing the 3000k?
Yes, I sent e14 3000k too
I’ll test the 3000K E14, but first I need to get an E27-E14 adapter for my sphere.
Here’s the CRI data for the Remez SunLike E14 3000K.
UV and IR for plants
Say what?
You want red and blue, not UV and IR (and not narrow LED spikes but a fairly broad range of each color)
DuckDuckGo. Privacy, Simplified.
UV and IR for plants
Say what?
You want red and blue, not UV and IR (and not narrow LED spikes but a fairly broad range of each color)
I know this pictures since 2013. I need just real tests, not pictures.
Or you think that manufacturer and his huge buyer are stupid? Do you really think that they did not seen this pictures?
Here’s the CRI data for the Remez SunLike E14 3000K.
Looking good. I’ll take a bit of over-saturation. :+1:
Hello, peoples of the round Earth. StarLike LEDs is near!
s. New body of SunLike50D
My fav is WGS84.
Well flattening it can be useful when you want it to fit a flat screen. Here’s a little code from an old project of mine. Does this make me a flat earther?
function MapLatLonToXY($phi, $lambda, $lambda0)
{
$N; $nu2; $ep2; $t; $t2; $l;
$l3coef; $l4coef; $l5coef; $l6coef; $l7coef; $l8coef;
$tmp;
/* Precalculate ep2 */
$ep2 = (pow($GLOBALS[‘sm_a’], 2.0) - pow($GLOBALS[‘sm_b’], 2.0)) / pow($GLOBALS[‘sm_b’], 2.0);
/* Precalculate nu2 */
$nu2 = $ep2 * pow (cos($phi), 2.0);
/* Precalculate N */
$N = pow($GLOBALS[‘sm_a’], 2.0) / ($GLOBALS[‘sm_b’] * sqrt(1 + $nu2));
/* Precalculate t */
$t = tan($phi);
$t2 = $t * $t;
$tmp = ($t2 * $t2 * $t2) - pow($t, 6.0);
/* Precalculate l */
$l = $lambda - $lambda0;
/* Precalculate coefficients for l**n in the equations below
so a normal human being can read the expressions for easting
and northing
— l*1 and l2 have coefficients of 1.0/
$l3coef = 1.0 - $t2 + $nu2;
$l4coef = 5.0 - $t2 + 9 * $nu2 + 4.0 * ($nu2 * $nu2);
$l5coef = 5.0 - 18.0 * $t2 + ($t2 * $t2) + 14.0 * $nu2
$l6coef = 61.0 - 58.0 * $t2 + ($t2 * $t2) + 270.0 * $nu2
$l7coef = 61.0 - 479.0 * $t2 + 179.0 * ($t2 * $t2) - ($t2 * $t2 * $t2);
$l8coef = 1385.0 - 3111.0 * $t2 + 543.0 * ($t2 * $t2) - ($t2 * $t2 * $t2);
/* Calculate easting (x) */
$xy;
$xy[0] = $N * cos($phi) * $l
/* Calculate northing (y) */
$xy[1] = ArcLengthOfMeridian($phi)
return $xy;
}
Edit: man the formatting went to heck.
. I need just real tests, not pictures.
Eh? You mean you need evidence to convince you which wavelengths plants use for photosynthesis?
You could do the experiment yourself; it would be a good science fair type project.
UV and IR for plants
Say what?
You want red and blue, not UV and IR (and not narrow LED spikes but a fairly broad range of each color)
It was probably lost in translation, but I assume he meant to say “deep red” and “deep blue”. Not actually UV and IR.
It is time for a BLF Sunlike light bulb
Fneuf, I think it is bingo again!
Indexes:
99
99
99
98
s. I did not pay to Maukka! All legal!
9W SOL Review: SunLike9 SOL COB E27 LED bulb (4000K, CRI99)
8W smd SAW Review: SunLike8 SMD SAW E27 LED bulb (4200K, CRI98)
Wow. I’m not sure if I ever want to see this light in person for fear of nothing else living up to it. That’s an AMAZING ~4000K spectrum. Wow.
Seriously. When are you going to get a contract to mass produce a bulb like these?
SunLike:Wow. I’m not sure if I ever want to see this light in person for fear of nothing else living up to it. That’s an AMAZING ~4000K spectrum. Wow.
Seriously. When are you going to get a contract to mass produce a bulb like these?
what?!
World government will kill me if I will mass produce bulbs like that
Now only like this in my shelter:
Wow amazing results!
SunLike:Wow. I’m not sure if I ever want to see this light in person for fear of nothing else living up to it. That’s an AMAZING ~4000K spectrum. Wow.
Seriously. When are you going to get a contract to mass produce a bulb like these?
Even with a price reduction from economies of scale, I think they’d be a lot more expensive than the average person is willing to spend on a light bulb.