Live Stoners Current Live Stoners Gossip Sept/oct/nov 2107

[Dr Fluff]

Ladies and Gents...
We have a winner...
Congrats arty..

Thanks Duggy!

 

[RainDan]

>>> thanks @RainDan --that clarifies some things... but my confusion is still with how to correlate the color temp' with CRI... if it's the different wavelength balances output that determine the color K, is this not also part or CRI, how the wavelength balance closely simulates true Sunlight? 80 and 90 CRI have slightly different wavelength balance (?), so if there's a difference between them, how does it now affect color K? That's what stumping me!

No problem - this is a very complicated question, so here goes....the color temp is the result of the spectral distribution of the COB output as also influenced by the phosphor coating applied to the surface...

CRI is a function of the reproducability of true sunlight...specifically between the 80 and 90 CRI there is an R9 value that is higher in higher CRIs, which is a characterization of the "trueness" of the red emitted (as evidenced by the visual spectrum.

 

[Micron Creek]

---- RT-Z!! --you slay me man, nice pun! ... keep that grizzled shalaylee under the desk at least please!

Grizzled shalaylee sounds like an @mephisto strain

 

[Dr Fluff]

 

[RainDan]

Isn't aluminium anodized with electricity? Will electrical wavelengths nearby affect this?

Hi @Vapo69

I have not heard customers comment on this nor have we experienced anything here with respects to affect on electrical items. This usually occurs with a magnetic ballast type light.

 

[Micron Creek]

No problem - this is a very complicated question, so here goes....the color temp is the result of the spectral distribution of the COB output as also influenced by the phosphor coating applied to the surface...

CRI is a function of the reproducability of true sunlight...specifically between the 80 and 90 CRI there is an R9 value that is higher in higher CRIs, which is a characterization of the "trueness" of the red emitted (as evidenced by the visual spectrum.

What lenses should a person wear to protect their eyes while tending to a grow under Timber lights?

 

[Gauge Steel]

LMAO.... when I want to be...? Am I usually slow?:smoking:

just in the sense of being in the right place at the right time brother! I didnt even have a pen ready.

 

[Dr Fluff]

---- RT-Z!! --you slay me man, nice pun! ... keep that grizzled shalaylee under the desk at least please!

Duggy made me post it!
Am i right you wanted me to post a pic?

 

[Eyes on Fire]

brazing goggles LOL

 

[RainDan]

@RainDan for the non cob geeks among is can you explain the difference between ppf and ppfd and what numbers we should be looking for when buying a light

That is a very important point, and distinction.

PPF is the value of the total amount of light emitted in µmol/s. The PPFD is the application of this light over a defined space (in m²). PPF is a good way to compare not only COB lights, but other styles as well like HPS, MH, LED panels. The coverage area, and the "spreading" of this PPF will give you stronger or weaker PPFD as you change the coverage area.

Many growers will say the PPF/PPFD are the most important considerations when purchasing a light for your indoor garden, even moreso than CRI and spectral color temperature.