Club 315w lec

MichiganMedGrower

MichiganMedGrower

Well-Known Member
gwheels said:
Phillips has a 3k bulb and a 4k bulb. I use a 3k phillips bulb start to finish. Should i get a 4k and when would i use it ? (if it is more blue i would think veg.).
Click to expand...

4200k is meant for veg but even Phillips states the 3100k is perfect start to finish.

Personally I wouldn’t want the stronger blue leaning spectrum as the 3100k already keeps plants very compact.
 
MichiganMedGrower

MichiganMedGrower

Well-Known Member
UncleBuck said:
the 4k is good for finishing the plant in late harvest
Click to expand...

Wow. That’s true but you meant to say ripening or late bloom. Except the 3100k has sufficient uvb so it is still an unessasary expense. I posted a link above with all the numbers for most common Grow lamps from the university of Utah.

And if it’s more uvb you are after ushio bulbs have almost 15% less par but more uv in their spectrum.

Growers house comparison linked above but more info available in their article than video.

Getting lonely in politics buck?
 
UncleBuck

UncleBuck

Well-Known Member
MichiganMedGrower said:
Wow. That’s true but you meant to say ripening or late bloom. Except the 3100k has sufficient uvb so it is still an unessasary expense. I posted a link above with all the numbers for most common Grow lamps from the university of Utah.

And if it’s more uvb you are after ushio bulbs have almost 15% less par but more uv in their spectrum.

Growers house comparison linked above but more info available in their article than video.

Getting lonely in politics buck?
Click to expand...
no, you're wrong and giving these growers poor advice
 
DCobeen

DCobeen

Well-Known Member
Underground Scientist said:
When you say it's not about the par, but useable light...par IS the useable light. Photosynthetically Active Radiation. These are really efficient HIDs. We can run em open hood in tents and utilize the UV. 3100 has more reds, which are desirable for flowering, and has more photosynthetically useable light. What I would say is who knows what effect different spectral compositions have on terp profiles, but it does. The only way is through experience and apple to apple comparison.

And I feel like I'm coming off like I really need a toke right now...I'm just obsessed with logical reasoning...lol

I'm a little skeptical of plain 4200 having a better bud/leaf ratio than 3100 without supplemental red. Mixing them in configurations might be interesting though. I get too obsessed with symmetry for it though.
Click to expand...
when I said about par I mean HID lights are around 24% Usable par where as LEC is around 58% Usable par. just cause our meters say par doesn't mean the plant likes it and will use it. Hope that makes since it does to me. and 4200k is only a bit lower on the 680 nm range that is why I am using 3100k bulbs to help that more.
 
DCobeen

DCobeen

Well-Known Member
gwheels said:
Phillips has a 3k bulb and a 4k bulb. I use a 3k phillips bulb start to finish. Should i get a 4k and when would i use it ? (if it is more blue i would think veg.).
Click to expand...
look at the spectrum output. 4200 or 3100 can be used all the way through. I had 3000k bulbs in a t5 and the 4200k did better all the way. but mixing them was even better. just saying from experience.
 
ilovetoskiatalta

ilovetoskiatalta

Well-Known Member
Underground Scientist said:
I assume passive intake of some sort? I put two 6" duct couplings into low ports of my tent with dust screens. That inline sounds a little small. I use a 6", 440cfm active air inline, with variable speed in my 5x5.
Click to expand...
It might be but there is no smell. Temps are steady 72 lights on 66 lights off. The RH has been 49-54% since adding an 18” oscillating fan. These numbers are for a week since getting the fan. The tent is just sucked in so there is air flow. The variac is set at 30%
 
Last edited:
DCobeen

DCobeen

Well-Known Member
Since I went organic my plants stopped stinking until I touch them or chop them then they show you a potent smell for sure.
ilovetoskiatalta said:
It might be but there is no smell. Temps are steady 72 lights on 66 lights off. The RH has been 49-54% since adding an 18” oscillating fan. These numbers are for a week since getting the fan. The tent is just sucked in so there is air flow. The variac is set at 30%
Click to expand...
 
You must log in or register to reply here.
Top