heatherlonglee
Active member
1. I have over 5 years of experience flowering under HPS
2. On my 4th round with the 315w CMH
3. Back in the day 3 full complete runs under Cool White T-12, 4 footers; hung vertical, I had 400w on one plant in 4 gallon pot.
I'm here to tell all who'll listen the near future it's going to be about using a dedicated veg spectrum/bulb, weight spectrum/bulb, quality spectrum/bulb; 3 spectrum/bulb system.
On a 65 day strain, I've already established this for my setup. The Phillips 315w CMH 3100k for Vegging and first 12 days of Flower, day 13-44 Hortilux 400w HPS. The last stage for quality is where I'm not 100% sure what the best bulb would be, or if it even exists yet?
I'm leaning towards the 315w CMH 4200k or the Eye Hortilux Blue Daylight MH 6500k. I don't need to hear about how I got the veg bulb and the flower bulb backwards. I've flowered under the 3100k CMH and Cool White T-12's. Quality was up over the HPS, weight wasn't comparable. Leaving the weight debate aside for now; I can't help but think all the extra blue in the 4200k CMH, or Eye Hortilux Blue Daylight MH 6500k will only drive quality up over the HPS or even the 3100k CMH.
The way I see this 3 spectrum/bulb system working out is something like this.
Veg spectrum/bulb, (day 1 to day 12) can be just about anything you want depending on if you need stretch or bushiness. 2000k-7000k anything in this range easily would work.
Weight spectrum/bulb, HPS no debate here. Use this for the most amount of flower days possible without sacrificing last 3 week quality flip. 2100k pretty standard for HPS.
Quality spectrum/bulb, (last 3 weeks) not exactly sure about best spectrum? I think it's going to be in the 4000k-8000k range.
2. On my 4th round with the 315w CMH
3. Back in the day 3 full complete runs under Cool White T-12, 4 footers; hung vertical, I had 400w on one plant in 4 gallon pot.
I'm here to tell all who'll listen the near future it's going to be about using a dedicated veg spectrum/bulb, weight spectrum/bulb, quality spectrum/bulb; 3 spectrum/bulb system.
On a 65 day strain, I've already established this for my setup. The Phillips 315w CMH 3100k for Vegging and first 12 days of Flower, day 13-44 Hortilux 400w HPS. The last stage for quality is where I'm not 100% sure what the best bulb would be, or if it even exists yet?
I'm leaning towards the 315w CMH 4200k or the Eye Hortilux Blue Daylight MH 6500k. I don't need to hear about how I got the veg bulb and the flower bulb backwards. I've flowered under the 3100k CMH and Cool White T-12's. Quality was up over the HPS, weight wasn't comparable. Leaving the weight debate aside for now; I can't help but think all the extra blue in the 4200k CMH, or Eye Hortilux Blue Daylight MH 6500k will only drive quality up over the HPS or even the 3100k CMH.
The way I see this 3 spectrum/bulb system working out is something like this.
Veg spectrum/bulb, (day 1 to day 12) can be just about anything you want depending on if you need stretch or bushiness. 2000k-7000k anything in this range easily would work.
Weight spectrum/bulb, HPS no debate here. Use this for the most amount of flower days possible without sacrificing last 3 week quality flip. 2100k pretty standard for HPS.
Quality spectrum/bulb, (last 3 weeks) not exactly sure about best spectrum? I think it's going to be in the 4000k-8000k range.