Master COB
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Help & advice
Frequently asked questions
About Master COB — click a question to see the answer.
What is the difference between COB LED and classic LEDs for indoor growing?
The main difference is light concentration. With classic LEDs, you have individual diodes scattered. The Master COB, however, groups several chips on a single substrate. This creates a much denser and more homogeneous light source, which translates into better light penetration into the canopy and a more uniform distribution over your plants. It's a bit like comparing a spotlight to a multitude of small bulbs.
What Master COB wattage should I choose for my growing area?
That's an excellent question, and the answer really depends on your space. Generally, I recommend aiming for about 30 to 50 watts per square foot (approximately 0.09 m²) for efficient indoor growing. For a Master COB, thanks to its efficiency, you might even be in the lower range. I always recommend checking the model specifications and manufacturer's recommendations for your exact area, as actual power and coverage can vary.
How far should I install the Master COB light?
Distance is crucial to avoid light stress and maximize efficiency. Generally, I start by positioning my Master COB between 40 and 60 cm from the canopy. Then, I carefully observe my plants. If I see signs of bleaching or burning, I raise the light slightly. If the plants stretch, I lower it a bit. The goal is to find the right balance for intense light without damage.
What are the advantages of COB technology for horticultural lighting?
The advantages are numerous! Firstly, light penetration is exceptional. Thanks to its dense source, light reaches the lower parts of the plant better. Secondly, the distribution is very homogeneous, which minimizes hot and cold spots. Finally, the Master COB is often more energy-efficient and has a longer lifespan than other technologies, which is a benefit for your wallet and the environment. I find this technology truly effective for demanding growers.
Is the Master COB suitable for growth or flowering?
The Master COB is designed to be versatile and effective throughout the entire life cycle of your plants. Thanks to its well-balanced light spectrum, it provides the necessary energy for both the vegetative growth phase, promoting robust development, and for flowering, stimulating the production of flowers and fruits. This is what I particularly appreciate about this type of technology: no need to change lights between cycles.
What mistakes should I avoid with a COB LED light in indoor growing?
The main mistake I often see is not adjusting the distance correctly. A Master COB too close can burn your plants; too far, they will stretch. Next, it's crucial to ensure good ventilation, because even if LEDs generate less heat than HPS, they still emit heat that needs to be dissipated. Finally, don't neglect the importance of a good nutrient program, as intense light demands more from your plants. I explain the importance of nutrition in more detail in this article on nutrients.
COB LED vs HPS: what's the difference in terms of consumption and efficiency?
That's a very relevant comparison! In terms of consumption, the Master COB is significantly more advantageous. It uses much less energy to produce an equivalent, or even superior, amount of light compared to an HPS. For efficiency, the Master COB converts a larger portion of electrical energy into useful light for plants, with less heat generated. This means lower electricity bills and easier temperature control in your growing space. It's a potentially higher initial investment, but one that quickly pays for itself.
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