Question 1

Can powerful LED lights be installed in this box without the risk of overheating given the passive ventilation mats?

Accepted Answer

The G-MAX WIDE Growbox – 120 x 60 x 180 cm is designed to accommodate powerful lighting such as 400W MH or HPS lamps, which showcases its robustness. Horticultural LED lamps, which generally produce less heat than these older technologies, can therefore be used without major overheating risks. However, passive ventilation mats alone may not always be sufficient to effectively manage heat over prolonged periods or with very powerful LEDs. To ensure an optimal temperature and protect your crop, it is strongly recommended to complement this ventilation with an active ventilation system, such as an air extractor suited to the size of the box. This combination will allow you to safely enjoy your powerful LED lamps while maximizing the health and development of your plants.

Question 2

Solid box, great for beginners! But is the height of 180 cm enough for flowering plants if I want to install a good carbon filter and a fan?

Accepted Answer

The height of 180 cm of the G-MAX WIDE box is generally sufficient to install a carbon filter and a fan while leaving room for your flowering plants. Filters and fans usually measure between 20 and 40 cm in height, which, combined with the installation flexibility provided by the removable hanging bars, allows for optimizing the interior space. You will need to plan the layout well to maximize the usable height for the plants and ensure good air circulation.

Question 3

What useful height remains after installing the roof bars for lighting and extraction fixation?

Accepted Answer

The G-MAX WIDE grow box - 120x60x180 cm offers a total height of 180 cm. After installing the roof bars for fixing the lighting and extraction, the remaining useful space is generally between 130 cm and 150 cm. This estimate takes into account the 30 to 50 cm occupied by hanging equipment and cable management. This useful height can vary depending on the thickness and exact configuration of the installed devices. For an accurate measurement, it is better to check the space directly once the accessories are in place.

Question 4

What is the height available under the roof bars to install a extractor or filter in this box 120x60x180?

Accepted Answer

For the grow box G-MAX WIDE - 120x60x180 cm, the total internal height is 180 cm. After installation of the roof bars and securing the equipment (lighting, extraction), the height available under these bars generally ranges from 130 cm to 150 cm. This leaves sufficient space to install an extractor or filter while optimizing the growing area for your plants.

Question 5

What humidity management do you recommend at night in this G-MAX WIDE grow box with the mylar floor pool and ventilation openings?

Accepted Answer

To manage humidity at night in the G-MAX WIDE Growbox 120 x 60 x 180 cm, it is essential to fully utilize the ventilation openings to ensure regular air exchange and avoid excessive moisture buildup. Maintaining a stable temperature between 18°C and 24°C also promotes good evaporation without stressing the plants. Be sure to keep the mylar floor pool clean to prevent any mold formation, and precisely adjust your watering to avoid excess water that would increase humidity. Careful management of these elements ensures an optimal environment, even during the night.

Question 6

What is the impact of the thickness of 210D mylar on light distribution and yield in this GMAX Wide 120x60x180 box?

Accepted Answer

The thickness of 210D mylar in the G-MAX WIDE 120x60x180 cm grow box plays a crucial role in light distribution and yield. This dense mylar offers high reflectivity, ensuring light is evenly distributed across all surfaces, which reduces shadow areas and maximizes light efficiency. This better diffusion stimulates photosynthesis, promoting more uniform growth and higher yields. Furthermore, the durability of 210D mylar ensures a long-lasting coating without degradation of reflectivity, while preventing light leaks, which is crucial for maintaining optimal growing conditions. In summary, 210D mylar optimizes the available light for plants, enhances energy performance, and contributes to a stable environment, beneficial for your indoor cultivation.

Question 7

What advice for optimizing the differentiated management of lighting and ventilation during the growth and flowering phases in this G-MAX WIDE 120x60x180?

Accepted Answer

To optimize the differentiated management of lighting and ventilation in your G-MAX WIDE 120x60x180 cm, it is essential to adjust these parameters to the growth and flowering phases. In lighting, take advantage of the available height to install your plants with sufficient vertical space (between 130 and 150 cm free). The mylar 210D ensures excellent light reflection, thus maximizing brightness without shadow areas. Reduce the light intensity during growth, then increase it during flowering to support flower development. In terms of ventilation, use the three openings with their Velcro flaps to circulate air efficiently, keeping the temperature between 18°C and 24°C. This thermal stability helps prevent excess humidity, fostering a healthy environment. Finally, be sure to regularly clean the mylar to avoid any risk of mold. By combining these precise adjustments, you will optimize the health and yield of your plants in this box.

Question 8

What is the actual effectiveness of passive ventilation openings to limit noise and odors without compromising air renewal in this GMAX wide box 120x60x180 cm?

Accepted Answer

The G-MAX WIDE grow box is equipped with three passive ventilation windows with 210D mylar flaps, located at the bottom. These openings allow for optimal air renewal while effectively limiting odors through precise control of airflow. Additionally, the flaps provide discrete ventilation, reducing noise without compromising the necessary air circulation for healthy plant growth. Therefore, these openings represent an excellent compromise between ventilation efficiency, odor management, and noise reduction.

Question 9

What humidity management do you recommend in this mylar box with a ground pool and passive air vents?

Accepted Answer

To manage humidity in your G-MAX WIDE grow box - 120x60x180 cm - Mylar with a ground pool and passive air vents, several essential points deserve attention:Regularly clean the ground pool to avoid water stagnation that promotes mold and pests.Adjust the humidity level according to the growth stage: 75-85% during germination, 45-55% during vegetative growth, 40-50% during flowering to limit health risks.Utilize the properly positioned passive vents for a natural airflow, preventing condensation and humidity saturation.Monitor humidity with a hygrometer and, if necessary, supplement with a small fan or occasional misting to remain within the ideal range.This balanced approach guarantees a healthy and stable environment conducive to harmonious plant development under horticultural LED lighting.

Question 10

What is the real affinity of passive ventilation openings to limit odors without reducing air circulation?

Accepted Answer

The G-MAX WIDE Grow Box – 120 x 60 x 180 cm is equipped with three passive ventilation openings with 210D mylar flaps. This design allows precise control of air intake, effectively limiting odors while ensuring optimal ventilation.Located at the bottom of the tent, these openings promote a natural flow of fresh air coming in from below and warm air escaping through the upper exhausts, preventing odor accumulation. Additionally, the flaps reduce noise disturbances without compromising the ventilation quality necessary for plant health.In summary, the affinity of the passive openings of the G-MAX WIDE is very high for controlling odors without slowing down air circulation, ensuring a healthy and stable environment for cultivation.

Question 11

Is the charcoal filter attachment stable on removable roof bars in case of high humidity?

Accepted Answer

The charcoal filter attachment on the removable roof bars of the G-MAX WIDE cultivation box - 120x60x180 cm - Mylar - GreenCube is perfectly stable, even in case of high humidity. The bars are made of white lacquered metal with a corrosion-resistant treatment, ensuring they do not deform or rust. This sturdiness ensures a reliable attachment of heavy accessories like the charcoal filter.The robust structure combined with a waterproof floor pool further protects the tent against humidity, contributing to the overall stability. You thus benefit from a secure and durable setup in a humid environment, without compromising air circulation thanks to the generous height of 180 cm.

Question 12

What is the best method to manage air circulation in the G-MAX WIDE box to optimize growth and avoid humidity problems?

Accepted Answer

To effectively manage air circulation in the G-MAX WIDE Growbox – 120 x 60 x 180 cm – Mylar – GreenCube, it is essential to prioritize the three openings with Velcro closures to ensure constant air renewal. A good balance between incoming air (about 75% of the extraction capacity) and outgoing air prevents negative pressure and improves humidity control. It is crucial to install suitable and adjustable fans to guarantee gentle and uniform circulation without stressing the plants. Adjust the intensity according to the growth phases: moderate for growth, increased during flowering. Adding a hygrostat can automate humidity management, thereby limiting the risk of mold. Finally, regular maintenance of the inner mylar surface, which perfectly reflects light, is essential to maintain a healthy environment and promote photosynthesis. This combined management of ventilation ensures ideal conditions for the healthy and vigorous growth of your plants.

Question 13

What is the recommended airflow rate for optimal ventilation in this box without risking leakage or creating too much noise?

Accepted Answer

For the G-MAX WIDE Growbox 120 x 60 x 180 cm, an airflow rate of approximately 100 to 150 m³/h is recommended. This flow allows for air renewal several times an hour, ensuring effective control of temperature (between 18°C and 24°C), humidity, and odors. This moderate ventilation limits noise and preserves the box's airtightness, particularly due to the three passive mylar windows that optimize airflow without leaks. To perfect the ventilation, an internal oscillating fan is ideal to avoid stagnant areas and ensure uniform circulation among the plants. Finally, it is important to adjust this airflow rate based on the measured indoor climate, to maintain optimal conditions without unnecessarily straining the equipment.

Question 14

How do you ensure the complete airtightness of the box against moisture risks, particularly at the level of closures and ventilation openings?

Accepted Answer

The G-MAX WIDE grow box guarantees complete airtightness thanks to several key elements: Adjustable double cuffs with cords ensure an airtight seal around pipes and cables, preventing any moisture infiltration. Mylar ventilation flaps secured with Velcro maintain an airtight opening while allowing precise airflow adjustment. Secured side windows close perfectly to limit any moisture exchange. In terms of materials, the high-density 210D mylar coating is robust and waterproof, complemented by a waterproof and removable floor pool to protect the base. The white lacquered metal structure also resists corrosion related to humidity. Finally, the design with an adjustable cross airflow promotes effective ventilation, limiting condensation and stagnant humidity for a healthy environment.

Question 15

What is the maximum LED power I can use in 120x60 without overheating or reduced efficiency g/watt in this G-MAX WIDE box?

Accepted Answer

For the G-MAX WIDE Growbox – 120 x 60 x 180 cm, it is recommended to use LED power between 150W and 200W. This range helps to avoid overheating and maintain excellent light output (g/W), provided that effective ventilation of around 100 to 150 m³/h is ensured. The 210D mylar coating optimizes light reflection, thus improving performance without requiring higher power.More powerful panels are possible, but ventilation would need to be enhanced to prevent a temperature rise that would reduce efficiency.

Question 16

Is the G MAX box not too difficult to set up alone and are the roof bars solid for fruit bubbles and heavy filters?

Accepted Answer

The G-MAX WIDE grow box 120x60x180 cm features a solid 16 mm steel structure that ensures good stability and greatly facilitates assembly, even solo. The mylar cover is pre-shaped for quick and intuitive assembly. As for the roof bars, they are robust and made of white lacquered metal, designed to support around 20 kg if the weight is evenly distributed. They are perfectly suitable for suspending heavy filters, extractors, or filter balloons like your "fruit bubbles", provided that adjustable straps are used to properly distribute the load. This box is therefore an excellent choice if you are looking for a stable installation, easy to set up alone, capable of supporting quite heavy suspended equipment without difficulty.

Waterproof	No
Shape	Rectangular
Dimensions	120x60x180
Material	Mylar 210D, tissu 600D
Growing area	0.72
Compatibility	LED 150-200W, MH/HPS 400W, fluo compact 150W
Mylar density	210D
Ventilation opening diameter (mm)	152-204
Number of openings	3 passives
Max load (kg)	20
Volume (m³)	1.296
Number of doors	1

GreenCube G-MAX Wide – grow tent 120x60x180 cm

Choose your model

Highlights

Étanche

1 pack including this product

Choose your pack

Pack of the month of April - 120cm x 60cm - Top of the range

Product presentation

Key Features:

Technical specifications :

Opinion from an expert grower:

Frequently asked Questions :

Features detailed

Reviews customers

C'est un excellent investissement

Franchement, je suis

Bon rapport qualité-prix

Produit de très bonne

Bon rapport qualité-prix

Your questions

Viewed recently

Write your review

GreenCube G-MAX Wide – grow tent 120x60x180 cm

Choose your model

Highlights

Étanche

1 pack including this product

Product presentation

Key Features:

Technical specifications :

Opinion from an expert grower:

Frequently asked Questions :

Features detailed

Reviews customers

C'est un excellent investissement

Franchement, je suis

Bon rapport qualité-prix

Produit de très bonne

Bon rapport qualité-prix

Your questions

Viewed recently

More from GreenCube

GreenCube G-PRO – grow tent 100x100x200 cm, 22 mm poles

GreenCube G-MAX – Mylar grow tent 150x150x200 cm

GreenCube G-MAX Propagator – grow tent 90x60x100 cm

G-LIGHT grow box - 80x80x180 - 16mm tubes - GreenCube

GreenCube G-PRO+ – grow tent 240x240x220 cm, 25 mm poles

Related articles

Write your review