Welcome, Niko
Ledxpert is absolutely correct. the goal is to provide enough photons of usable light to cover our grow space. Trying to have some basic guidelines helps. HID fixtures like HPS and MH need to consume approx 50w/sq ft to get enough PPFD to get good growth. Blurple style led...
750W of QB's in a 4x4? Hope you have some co2 plumbed or some dimming because that would give you way over 1000umole PPFD. Nice rig and the growth looks marvelous.
Using top-shelf arrays, I'd plan on 300w to give you adequate intensity for that area. I run Vero bars, as well as Samsung strips in my grow and it's hard to match the uniformity of hundreds of light sources spread over your canopy that the strips provide.
Honestly, if you can handle the heat I'd go with another 315CMH. That will give you decent uniformity across the space compared to a single source. Also, no disrespect to sponsors but how in the world is that 250w fixture supposed to adequately light a 4x4???
Here's my take-I started indoors with a King 1200W(ha!) blurple and added a couple of Mars300's to try and get decent coverage for my space. Draws about 550w and it will grow 5-6 decent plants at once but it does generate a decent amount of heat.
This year I decided to build a pair of Vero29...
I have precisely the same issue. It was either reduce the area I could work with or use a more efficient diode. Watts are watts-either heat or light. The goal is making more light and less heat from that watt.
and back to the original question...
The 10-12 sq ft of area you're trying to light will need at least 30 watts/sq ft when using most commercially available led fixtures. For the area you have I would want 300-400 watts actual consumption to get optimum light levels.
and back to the original question...
The 10-12 sq ft of area you're trying to light will need at least 30 watts/sq ft when using most commercially available led fixtures. For the area you have I would want 300 watts actual consumption to get optimum light levels.
I'm sorry for sounding like an ass, but I really wanted to emphasize the amount of disinformation that someone who is trying to make an informed purchase has to navigate.
When it comes to growing cannabis indoors, being able to know how much light energy that the plant has available is vital...
Boy oh boy...60W is now equivalent to 600 ???
Based on the fact that the lamp is equal to 1/2 the actual power of an old Mars 300 and the fact that one Mars 300 is barely adequate for a single plant...Good Luck!