Havent seen any differences or lack of trichome heads at all. Its very sticky, literally sticks to the wall.
-
As of today ICMag has his own Discord server. In this Discord server you can chat, talk with eachother, listen to music, share stories and pictures...and much more. Join now and let's grow together! Join ICMag Discord here! More details in this thread here: here.
CMH vs LED vs HPS
- Thread starter Gerardbutler79
- Start date
smirnoff420
Well-known member
And here we see lm301b compared to the sun and hps. Samsung says it's "sun like" well... I dunno. The spectrums are also capped off at 800 so the sun spectrum just stops abruptly in the pic.
Bridegelux Thrive LEDs come pretty close to natural sunlight, they managed to get rid of the cyan/green gap most white LEDs suffer from:
smirnoff420
Well-known member
Not the charts put out by some random Aliexpress growlight vendor. But the charts by renowned brands like Samsung or Bridgelux, yes.
Until an independent test is done there is nothing else any could look at. I can only speak for myself and I would rather see an independent test.
Does Samsung misrepresent their tests ?.
oh my god... a manufacturer of anything misrepresenting their product... that only happens in the soviet union....
wild cat
Active member
nie ma ZSRR
Corpselover Fat
Active member
Are you people talking about the samsung spectrum charts? Yes. Of course they are (reasonably) accurate. Every single diode is tested after manufacture and binned by the luminous flux, colour accuracy etc. The diodes are then sold for varying prices. Companies making nice lighting fixturea (not even talking about grow lights here) do not want their diodes to be of different colour and luminosity. A shit grow light company buys the cheapest lowest bin diodes of course and claims they have the same specs as the top bin diodes.
Corpselover Fat
Active member
Kirjota, vittu, englantia. Ja mihin sä vastaat? Koita edes vähän.
Corpselover Fat
Active member
Puolaksi saat kirjottaa ihan just niin paljon ku haluat tuolla --> https://www.icmag.com/forums/polish/
Not YellowCanary because if that chart were correct the light would be blurple, not white.
Last edited:
If any top diode company lied about their tests they would lose more than they gain in doing that. I'm sure all off brands of low quality fixtures lie about their specs regularly.
That cheap led I got works perfectly flowering males or reversing females. Their spectrum chart is prob BS but it seems to work perfectly. This is what they sent.. 1st pic is the spectrum from their fixture with no remote. 2nd pic is with the remote .. Very different spectrums the only difference is a remote controller lol.
![20230117_184648[626].jpg](https://www.icmag.com/attachments/20230117_184648-626-jpg.18841033/ "20230117_184648[626].jpg")
That cheap led I got works perfectly flowering males or reversing females. Their spectrum chart is prob BS but it seems to work perfectly. This is what they sent.. 1st pic is the spectrum from their fixture with no remote. 2nd pic is with the remote .. Very different spectrums the only difference is a remote controller lol.
Last edited:
Attachments
RobertFripp
Active member
Samsung has had a new diode out since last year. Its the EVO 301H, and is 435nm vs 450nm.
I ordered 2 Mammoth 880w Mint White Series LED not long ago.
880w x 2713umol. 3752 Diodes. 435nm-730nm.
The Mammoth has a Kelvin Rating of 4826k
Currently, five different spectra are offered:
While there may be thers the only manufacturers Ive seen using these new Diodes is Mammoth, and HLG on their Scorpion Diablo. Ive not researched it heavily.
Alkso the Mammoth 880w is 2713ppf vs 700w 2121ppf for the HLG.
And the Mammoth is $300 USD cheaper.
I ordered 2 Mammoth 880w Mint White Series LED not long ago.
880w x 2713umol. 3752 Diodes. 435nm-730nm.
The Mammoth has a Kelvin Rating of 4826k
435 nm chip in the LM301H Evo
With the LM301H Evo, a small revolution in plant lighting awaits us, because for the first time a composition of LED chip and phosphor has been developed especially for plant lighting. At its core is a short-wave 435 nm LED, which is used as a "photon pump" instead of the usual 450 nm.Currently, five different spectra are offered:
- Classic colour temperatures: 3000K, 4000K, 5000K, 6500K
- Special phosphor blend: Mint White
LM301H Evo Mint White
Ultimately, the latter is indeed revolutionary because it focuses on the blue and green-yellow range with a reduced red component. This takes into account the fact that for the red spectrum there are clearly more efficient alternatives. Modern 660 nm 730nm LEDs achieve over 4 µmol/J, as they run without a phosphor conversion and associated losses.While there may be thers the only manufacturers Ive seen using these new Diodes is Mammoth, and HLG on their Scorpion Diablo. Ive not researched it heavily.
Alkso the Mammoth 880w is 2713ppf vs 700w 2121ppf for the HLG.
And the Mammoth is $300 USD cheaper.
