Introduction
When growing plants indoors, especially cannabis, the right lighting plays a crucial role. Light is the most important factor for the growth and health of your plants. In this article, you will learn everything you need to know about the light requirements of your plants in the different growth phases and which lighting solutions are best suited to ensure a successful yield. Briefly and informatively summarized for you.
1. The light requirement in the growth phases
For successful indoor cultivation, your plants need different light conditions in each growth phase. These are crucial for the healthy growth and development of the plants.
-
germination and vegetation phase
During this phase, the plants need about 18 hours of light and 6 hours of darkness per day. The light must be strong and consistent so that the plants receive enough energy for growth. LEDs or sodium vapor lamps are ideal here as they offer a high light output and high-quality suppliers are represented on the market. -
flowering phase
Once the plants enter the flowering phase, a different light cycle is necessary. During this phase, the plants should receive 12 hours of light and 12 hours of darkness to stimulate the flowering process. Important: The dark phase must be completely free of light, as even minimal light disturbances can affect the flowering process.
2. The right lighting for indoor cultivation
Choosing the right lighting depends on your budget, goals and the size of your grow space. Here are some of the most common lighting solutions:
-
LED lamps !💡
LED lights are energy efficient and have a long lifespan. They emit little heat, which minimizes the risk of burns, and provide full-spectrum light that meets the needs of plants at all stages. -
sodium vapor lamps !☀️
These lamps are particularly suitable for the flowering phase as they emit a strong, warm light that promotes flower growth. However, they generate more heat, which is why good ventilation is necessary. They also consume a lot of energy.
Personal tip :
Of course, it is up to each individual whether they grow just for fun or really see it as a hobby. For the "fun method" we recommend simple, inexpensive products and good soil and seeds - even with inexpensive lighting a relatively good yield can be achieved. We recommend LED lamps because they are reliable and energy efficient.
For hobby growers, we recommend the Sanlight products , which are of very high quality. HomePod grow boxes with a generous activated carbon filter and a timer are also recommended. Pure organic fertilizer is ideal for a clean harvest and yield.
3. Positioning the light: The right distance for healthy growth
Correct positioning of the light source is just as important as the choice of lamp. Light that is too close can cause burns, while light that is too far away will result in insufficient growth.
-
distance from the light source !📏
Depending on the light source, the distance to the plant should be between 30 and 60 cm . LEDs generate less heat and can be positioned closer to the plants. With sodium vapor lamps, a greater distance is advisable to avoid heat damage. Make sure to follow the growth of your plant and check the light distance regularly. During the germination phase, either a greater distance or a lower intensity should be given. -
light distribution !🔄
Make sure the light is evenly distributed so that all plants are adequately illuminated. Reflectors or a grow box with reflective walls are helpful for optimally distributing the light and maximizing the yield.
4. Other important factors for indoor cultivation
In addition to lighting, there are additional aspects that influence the success of your indoor cultivation:
-
timer !⏲️
Use a timer to precisely control your plants' light cycle to ensure they receive the right light conditions at each stage. -
Ventilation and temperature control !🌬️
Good air circulation and temperature control are important with high-powered lamps to avoid overheating. Cooling is particularly necessary with sodium vapor lamps to protect the plants.
5. Conclusion: The right lighting is the key to success
Proper lighting is at the heart of a successful indoor grow project. Whether you're growing for fun or as a serious hobby, there are lighting solutions to suit every goal. Remember, it's not just the choice of lamp that's important, but also proper positioning and control of light cycles.
With these tips, nothing stands in the way of your successful indoor grow project! 💡🌱
