Club 315w lec

Still CMH tempted here. Damnit.

hillbill said:

Still CMH tempted here. Damnit.

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Out of every LED & bulb I’ve used CMH gives me the frostiest nugs

Gingeroot said:

I’ll be joining the club here once I flip! Always been a CMH fan. I have two 315w Sunlight LECs with Philips 3100k bulbs and I’m thinking 3x6 for the footprint? Don’t think a 4’ spread is doable. Any input would be much appreciated!

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I believe you will do fine with the two 315's in a 4x6, It is said that they have a 3x3 footprint. I run two 315's in a 4x4 and know that I could cover two more feet with the two. That being said I do not use the entire 4x4, mine is more like a 3x4 as I have a stand up fan in the tent that takes about a foot away from the overall footprint.


You can see the distance from the end of the screen to the front of the tent, my screen is 4x3.


Yesterday Day 14 of 12/12

gr865 said:

I believe you will do fine with the two 315's in a 4x6, It is said that they have a 3x3 footprint. I run two 315's in a 4x4 and know that I could cover two more feet with the two. That being said I do not use the entire 4x4, mine is more like a 3x4 as I have a stand up fan in the tent that takes about a foot away from the overall footprint.
View attachment 4398217

You can see the distance from the end of the screen to the front of the tent, my screen is 4x3.
View attachment 4398218

Yesterday Day 14 of 12/12
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Beautiful set up! I’m in a room so won’t have much reflection. I’ll put several outta the 3x6 footprint and see how they do..

Gingeroot said:

Beautiful set up! I’m in a room so won’t have much reflection. I’ll put several outta the 3x6 footprint and see how they do..

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A suggestion if I might.
We set my assistant/apprentice up in a room and he run's two 315's also. We set the plants in a 3x5+ arrangement and place that foam insulation board around it, This is sort of what it is, I am not an engineer or artist but you get the point.


We actually lay the insulation board open some where the lights reflect off the walls. These boards can be moved to get in an work on the plants. This has worked well for him and if I had the room I would do the same setup.

hillbill said:

Still CMH tempted here. Damnit.

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I’ve loved the switch to my 2 315’s so far. Less hassle than the HPS and the frost is mouth watering

Had to throw one LEC up after reading this thread! They got some nice perky leaves under this indoor sun. Living soil, Useful Seed Orange & Chocolate diesel, and 24” from canopy. They were under LEDs in solos for three weeks and fabric pots for two.

Nice pictures. I'm happy that the temperatures are down here so I can use 315 again. The most beautiful artificial light in the world, efficiency be damned. I wish I could hang 10 watt CMH lamps in my house.

Gingeroot said:

View attachment 4398477 Had to throw one LEC up after reading this thread! They got some nice perky leaves under this indoor sun. Living soil, Useful Seed Orange & Chocolate diesel, and 24” from canopy. They were under LEDs in solos for three weeks and fabric pots for two.

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is your light a bit reddish？ or just because of the camera

GoBrah said:

is your light a bit reddish？ or just because of the camera

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It’s a 3100k Philips bulb...my fav! It does give off a reddish hue, maybe cuz it’s growin some redrum

I love my 315 4K str8 throwing frost...at start of 3 weeks

Garlic Breath week 8 pretty bud. I see a little purple creeping in.

Gingeroot said:

It’s a 3100k Philips bulb...my fav! It does give off a reddish hue, maybe cuz it’s growin some redrum

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Maybe this one can get you a better yield than regular white 3100k Philips

Running 2 630cmh lights over a 5x10 canopy. Running all Blue Dream this go around

5 weeks in flower tomorrow

FunkeyMunkey said:

5 weeks in flower tomorrow


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Nice looking sativa. What you got there?

Blue back said:

Nice looking sativa. What you got there?

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I couldn’t tell you honestly. It’s from a bag of stuff from last fall. I’m wanting to say it may be Zkittles or some variant bc the stem rub smells just like a tropical skittles pack.

What’s the purpose of having the ballast attached to the light on these?Theres plenty of used ones for sale in my area for cheap.was going to pick one up. Thx

myke said:

What’s the purpose of having the ballast attached to the light on these?Theres plenty of used ones for sale in my area for cheap.was going to pick one up. Thx

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Mine just came that way. I got the cheap ones off amazon to see how they were and I love them. Will def be upgrading to the vivosun and Phillips bulb in the next few runs. My 2 shitty topogro 315’s have performed well enough for me so far

myke said:

What’s the purpose of having the ballast attached to the light on these?Theres plenty of used ones for sale in my area for cheap.was going to pick one up. Thx

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Different environment, different setups. My ballast are separate but I keep them in the grow room where temps do not exceed 85f. A little more heat for my AC to deal with indeed.

Only because....the garage outside my grow room, temps daily exceed 100f during summer months and any heat wave. Possibly shorten ballast life.