I just feel like I need to get a bigger flowering tent and another light. I have a 4x4x7 ft flowering tent with 1000 watt HPS and it just seems hard for me to break that pound barrier I can’t get much past 16 17 Oz and I’ve been growing Blue Dream recently which is high yielding. My first run I had three plants and I got about 15 oz the second run I got what 465 g and a third run is in the process right now. I’d really like another HPS light and a 4x8x7 ft tent. I really think I could break that threshold and push to two and a half maybe even three pounds from that.
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The second run was seven top clones sorry I forgot to mention that and the first run was a mother plant and two clones.
My girl and smoke a lot. And we’re allowed 12 plants here. Of course I’m going to try to max that out 
Have you considered getting LED lights and increase PPFD. Hitting them with some UV and maybe some perimeter side lighting.
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Yes I’ve considered that but my experience with LED lights really isn’t that good I started using them when they first came out and they weren’t anything compared to HPS so that’s just kind of what I’m used to and that’s what I use for flowering I do use LED for veg. I wouldn’t mind investing in a good LED light system if I knew it actually produced good yields I don’t know if there’s anything that you would recommend? Also maybe I could get the bigger tent twice the size of what I got keep the 1,000 watt HPS on one side and then put maybe a LED on the other.
LED lights have come a long way. I can pull 1-1.5lb out of 300 watts of LED. With a 4x4 2-5lbs is expected with led.
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What is PPFD? And some side lighting would not be a bad idea at all… 
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In a 4x4. You say 2 and 1/2 lb is to be expected??? That’s far beyond what I’m yielding with a thousand watt HPS and far beyond my expectations. Do you have a particular light system LED that you would refer I mean I’m willing to spend the money on it
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2lbs-5lbs depending on wattage and strains, not all strains yield. 1LB should come fairly easy with not much work and dialing in your lights intensity.
I have a thread with some recommended lights. Depending on budget. It will up your yields and drop your electricity costs.
What’s your budget and what style do you grow in? Scrog? Training? Natural? I can help you narrow down for what makes sense and what yield you are looking for.
Here’s a link to my last harvest in a 4x4. With 1 plant that effected overall because of pheno.
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It’s how to compare LED to HID lights. Rather than comparing wattage, because LED use much, much less wattage than HID lights.
Look at lighting maps to see distance to canopy and the spread of PPFD over that area.
Here’s a LED horticultural that uses 720Watts $500 covers 5’ x 5’
HYPHOTONFLUX 2023 PRO-720 LED Grow Lights 3.0μmol/J 2784pcs Samsung Diodes, 5x5ft High Output Dimmable Commercial Grow Light Bar, Enhanced Red Full Spectrum Growing Lamp for Indoor Plants 6500k 660nm
PPFD stands for Photosynthetic Photon Flux Density. It is a measurement of the amount of light that reaches your plants and algae, or the number of photosynthetically active photons that fall on a given surface each second. PPFD is measured in micromoles per second (µMol/S) and it helps you to determine how much of the light your grow lighting system is producing can be used by your plants for photosynthesis. PPFD is an important factor for optimizing your plant growth and yield, especially if you are using artificial grow lights.
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Right now I’m using a 4x4x7-ft tent with a thousand watt HPS and I normally produce about average of a pound consistently. I had three plants I got about 15 oz seven plants I got about 16 17 Oz this time I don’t know I got like 10 plants 11 plants and we’ll see what happens normally I use the sea of green technique and I get good results from that this time I’m just letting it go natural pretty much a couple of them are topped most of them aren’t. One thing is I don’t lower my light I leave my light at the same level so maybe that may make a dramatic difference if I dial in my light to the zone of the plants I don’t know I get good results without doing that but I’m going to get in about a pound out of a 4x4x7 ft area. This round I may get more because I have more plants and I left them in veg and did more preparations with them. I would still want to keep my thousand watt HPS but I would like to get an LED light to go with it to fill another 4x4x7ft area. So I guess what I’m looking for is a good LED to cover a 4x4 area and then some because I’ll be putting it in a tent that’s 4x8x7 ft along with 1,000 watt HPS.
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Your looking for 1000 PPFD In a grow without CO2 and if you are supplimentjng CO2 you can shoot for 1500 PPFD.
Here’s a good video from the grow light guru.
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I just want a top shelf light.my bedroom is next to my grow room so it gets good CO2 but I don’t run my tanks no. I just want a good quality LED that will actually produce good high yield. And I will buy it lol. I don’t know why I’ve been so fixated and stuck with the HPS I guess it’s just what’s guided me this whole time and my experiences with LED other than in veg tents. Have normally been fluffy trash.
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Depends on LED used. They aren’t all the same. I’ve seen a lot of people average half gram per watt with hps.
In my last grow… 4 plants. Under LED lighting average of 575watts. These are DRY numbers.
Total Return in 4x4 50.8OZ/3.2LB
Midnight Snack 23.5OZ/1.5LB
Banana Kush 10.3OZ/0.64LB
Blueberry 17OZ/1.1LB
Age
Popped 2.6.23
Flipped 4.19.23
Chopped 6.30.23
145 days old
Average Wattage
575 watts
1,442grams/575=2.5GPW
Would have put out more, but my BK was a weirdo.
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The specs i posted show 3.0μmol/J which is the efficiency and 2784pcs is the number of light emitting diodes (LED’s) and they are Samsung. lol specs are on the top end of a commercial LED fixture. This one uses a MeanWell driver, equivalent to the ballast for an HID fixture.
The appropriate metric for measuring the efficiency of horticulture lighting is photosynthetic photon efficacy (PPE). It is defined as the PAR photon output (unit of micromoles per second, or μmol·s–¹) divided by the input power (watts, or W) to produce that light. [Thus, the unit becomes μmol·J–¹ (μmol per second/joule per second)
In simpler terms, PPE measures the amount of light energy (in micromoles) produced per unit of electrical energy (in joules) consumed by the LED light. [The higher the PPE value, the more efficient the LED light is in converting electrical energy into light energy that plants can use for photosynthesis.
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According to the manufacturer’s website, the HYPHOTONFLUX PRO-720 LED grow light has a photosynthetic photon efficacy (PPE) of 3.0 μmol·J–¹ ². This means that for every joule of electrical energy consumed by the LED light, it produces 3.0 micromoles of photosynthetically active radiation (PAR) ¹.
The PPE value of the HYPHOTONFLUX PRO-720 is higher than the target LED package efficacy of 266 lm/W set by the US Department of Energy (DOE) ¹. This indicates that the HYPHOTONFLUX PRO-720 is highly efficient in converting electrical energy into light energy that plants can use for photosynthesis.
I hope this helps! Let me know if you have any other questions.
Source: Conversation with Bing, 1/12/2024
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@BMS G’day mate swik uses hid lights aswell,it seems like you got a handle on it was no real question,rock on mate 
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