Terralba

To choose the right wattage, I recommend considering the surface area of your grow space and the specific needs of your plants. Generally, I advise around 30 to 50 actual watts per square foot (approximately 0.09 m²) for thriving cultivation, but this can vary. A light-hungry plant will need more power than a shade-loving plant.

The ideal distance is crucial to avoid light stress and ensure good light penetration. I advise starting with a distance of 30 to 60 cm (12 to 24 inches) for most LEDs, then adjusting based on your plants' reaction. If I see leaves yellowing or curling, it's often a sign that the light is too close.

For vegetative growth, I favor a spectrum with a dominance of blue light. For flowering, a spectrum rich in red light is more appropriate. In practice, many modern horticultural LED lights offer a full spectrum or adjustable modes to adapt to the different developmental phases of your plants.

The number of light hours depends on your plants' life cycle. For vegetative growth, I generally recommend 18 hours of light and 6 hours of darkness. During flowering, a cycle of 12 hours of light and 12 hours of darkness is often optimal. This is what I most often see for proven results.

The main difference lies in the light spectrum and intensity. Horticultural LED lights are specifically designed to emit the wavelengths necessary for plant photosynthesis, with a much higher intensity than a classic LED bulb. A classic bulb will not provide the essential light nutrients for your crops.

Signs of a light that is too powerful or too close include leaves yellowing, bleaching, or curling upwards, as well as stunted growth. I advise observing your plants carefully and reducing the intensity or increasing the distance if you notice these symptoms. Prevention is key.

For an economical light, I look at the PPF/W (Photosynthetic Photon Flux per Watt) efficiency. The higher this number, the more efficient the light is at converting electrical energy into useful light for plants. This is a key indicator for optimizing your electricity consumption without compromising growth. For example, during Black Friday, we often highlight models with excellent efficiency.

Installation is generally simple: fix the light above your plants at the correct height. For the timer, I recommend using a digital or mechanical timer to automate the light/dark cycles. Simply plug it between the wall outlet and your light, then program the desired hours. This is essential for regularity.

To optimize your indoor cultivation under LED, I advise you to turn to Terralba's organic fertilizers and amendments. Their products are renowned for their quality and their ability to support vigorous growth. If I had to choose, I would look at their ranges of growth and flowering fertilizers enriched with organic minerals for harmonious plant development under LED lighting.