2025-02-25

Finding the Light with a Balanced Spectrum for Cannabis Growing

In cannabis cultivation, spectrally balanced lighting is essential for all growth stages. Here are the key points and recommendations for choosing spectrally balanced lighting:


1. Spectral requirements

Blue light (400-500 nm): Promotes vegetative growth and makes the plant compact.

Red light (600-700 nm): Promotes flowering and fruiting, and increases yield.

Far red light (700-800 nm): Affects photoperiod and flowering time.

Ultraviolet light (UV-A, 315-400 nm): Enhances secondary metabolites such as THC and CBD.


2. Light type

Full spectrum LED light: Covers all necessary wavelengths, suitable for all growth stages, energy-saving and long life.

Ceramic metal halide lamp (CMH): Provides a balanced spectrum, suitable for vegetative growth and flowering.

Double-ended high pressure sodium lamp (DE HPS): The spectrum is reddish, suitable for the flowering stage, but needs to be used in combination with other lights.


3. Recommended lighting

HLG 550 V2 R-Spec: Full-spectrum LED light, suitable for all growth stages, high efficiency and energy saving.

Phlizon CREE COB series: Full-spectrum LED light, suitable for small-scale cultivation.

Gavita Pro 1700e LED: Full-spectrum LED light, suitable for large-scale cultivation.

NanoLux DE CMH 630W: Ceramic metal halide lamp, balanced spectrum, suitable for all stages.


4. Selection points

Spectrum coverage: Make sure the light covers blue light, red light, far-red light and ultraviolet light.

Light intensity and uniformity: Choose lights with appropriate light intensity and uniform distribution.

Energy efficiency and life: Choose high-efficiency and long-life lights to reduce long-term costs.

Heat dissipation performance: Good heat dissipation design ensures stable operation of the light.


5. Usage suggestions

Vegetative growth stage: Increase the proportion of blue light to promote compact plants.

Flowering stage: Increase the proportion of red light to promote flowering and fruiting.

Full-cycle lighting: Use full-spectrum LED lights to simplify management.


Conclusion

When choosing a spectrally balanced light, you should consider spectral coverage, light intensity, energy efficiency and heat dissipation. It is recommended to use full-spectrum LED lights, such as HLG 550 V2 R-Spec or Gavita Pro 1700e LED, to meet the needs of all stages of cannabis growth.

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