How to choose a clone light

Propagation lighting, also known as clone lighting, is a specialized type of grow lighting designed to provide the specific light spectrum necessary for optimal growth and development of seeds and clones. The blue range of light (400-500nm) is particularly beneficial for propagation as it promotes leaf and stem growth. Typically, propagation lighting is used alongside propagation trays or domes to maintain high humidity and temperature levels, facilitating germination and rooting. The lights are positioned close to the plants, and light exposure duration gradually increases as the plants mature.

Energy efficiency and low heat output are crucial aspects of propagation lighting to prevent overheating and drying out of plants. LED propagation lights are increasingly popular for their energy efficiency, cool operation, and adjustable spectrum capabilities, ensuring an ideal environment for healthy and successful plant propagation.

Light plays a pivotal role in fostering growth. Whether it’s humans, animals, or plants, all living beings rely on light to thrive. However, some plants, particularly those cultivated indoors, may not receive the necessary natural light to flourish. To overcome this obstacle, artificial lighting is employed to bolster the growing process. Generally, there are three primary types of lighting used in cultivation: HID, LED, and CFL. Each light source serves distinct purposes and aids different phases of growth.


HID lighting, also known as high-intensity discharge lighting, is a popular choice for promoting indoor plant growth. It is particularly well-suited for auto-flowering plants, which undergo a transition from vegetative growth to flowering growth at a certain age rather than being influenced by timed light sources. This makes HID lighting especially beneficial for plants that naturally make this switch based on their age.

HID lights are powerful and effective, but they should be used with caution, as they can potentially damage certain plants if not properly managed. It’s crucial to be mindful and intentional when positioning these lights to avoid harm to the plants. Finding the optimal setup might require some trial and error, as every hydroponic experience is unique and demands personalized adjustments.

When selecting lights for your plants, consider the desired growth speed. If time is of the essence, HID lights are an excellent choice, as they tend to promote faster growth in a shorter duration. However, if you have more time to spare and prefer a more gradual growth process, alternative lighting options might be more suitable.

Ultimately, the decision on which light to use depends on your specific plant species, growth goals, and environmental conditions. By carefully evaluating your needs and being attentive to your plants’ requirements, you can create an efficient and successful indoor growing environment.


LED lighting, which stands for Light-emitting diode, is undoubtedly the most renowned among the three types. It proves to be exceptionally advantageous for cloning purposes due to its ability to closely emulate natural sunlight, providing the ideal spectrum of light necessary for a plant’s lifecycle. One of its most notable merits is its capacity to generate minimal energetic waste, making it an environmentally friendly choice.

However, despite its numerous benefits, there are some drawbacks associated with LED lights. One significant downside is that they might lead to slower growth rates. It’s essential to emphasize that LED lights are still highly effective, but they could potentially result in extended growth periods. Additionally, they require precise positioning at a specific distance from the plants to prevent burning or bleaching.

In summary, LED lighting is a highly efficient option for plant cultivation, particularly for cloning purposes. Its ability to closely mimic natural sunlight and its eco-friendliness make it a popular choice among indoor growers. However, it’s crucial to carefully consider the potential trade-offs in terms of growth speed and proper setup to ensure optimal results.


The third lighting source, CFL (compact fluorescent light), is a commonly encountered option in our daily lives, primarily known for its affordability and efficiency. CFLs emit a cool white spectrum of light that provides ample illumination without being overly intense or harmful to the human eye. They are available in various colors, allowing for flexibility in supporting different stages of plant growth.

One of the significant advantages of CFL lights is their low heat emission compared to other grow lights. This characteristic makes them suitable for smaller spaces, as they can be positioned much closer to the plants without the risk of burning them. Due to this feature, CFL lighting is particularly well-suited for nurturing new cuttings, seedlings, and supporting plants during the vegetative growth phase.

Their versatility, cost-effectiveness, and ability to cater to specific growth stages make CFL lights a popular choice for indoor growers, especially those with limited space or those looking for an economical lighting solution. By utilizing the appropriate CFL bulbs and adjusting their positioning based on the plants’ needs, cultivators can effectively promote healthy and robust growth during critical stages of the plant’s life cycle.

Jon Harris

Jon Harris

Commercial cultivator with 7 years experience running 200+ light indoor facilities in Los Angeles. I’ve grown in Greenhouse and Outdoor facilities in Ukiah, CA and Grants Pass, OR for 5 years and was trained by my Aunt and Uncle in San Diego. I love pheno hunting genetics and trying out the new crosses. My growing style is centered around mycorrhizae/bacteria helping push the plant and my favorite nutrients are HEAVY 16 and prefer Rockwool. I Specialize in buildouts/room design that are simple and cleanable, creating work friendly layouts and always keeping the maintenance of the equipment in mind. I have two German Shepards and I love benchmade knives. Completed my Bachelors of Science from Cal Poly Pomona in 2010.
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