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WHY REFLECTIVE MATERIALS ARE NEEDED TO GROW CANNABIS INSIDE

Light is what gives life to your cannabis plants. Indoor growers have to use artificial lights, and those who get more abundant crops have something in common. All use reflective materials. Here we analyse the most frequent types of reflective materials for indoor cannabis cultivation.

Almost all indoor cannabis growers will agree that reflective materials are an essential element for a high yield crop. Sunlight will always be the best source of light. But when you grow marijuana indoors, you have to use artificial light. And if you don’t want that light as wasted, you’d better invest in reflective materials. The use of the right type of reflective material can increase your crops by up to 30%, according to most producers. The wrong materials can burn your plants and even reduce your productivity. These are what you need to know.

CROP CABINETS

A closet is a ready-to-use cannabis growing kit, covered from wall to wall and floor to ceiling with highly reflective material. Most modern growing cabinets are available with several types of Mylar. Recently, some manufacturers such as GreenQube have developed a special white Mylar coating called Spectrax, designed for maximum reflection of the LED light. Secret Jardin has also expanded its range to include grow cabinets lined with Orca crop film.
Plastic coated culture cabinets have become obsolete, and very few manufacturers still use this material. The bright silver interiors are still the most common and probably the best value for money. For the typical home grower, a culture cabinet lined with standard silver Mylar material is all you need.

REFLECTORS FOR CULTIVATION LAMPS

Reflective covers with reliefs or rough texture are considered the best for HID lamps. The glasses with a smooth and glossy finish do not work so well. The assistance diffuses the light more homogeneously, and previously the sheets of this aluminium were used in native crops.
If we talk about reflectors, the bigger, the better, the small and narrow tubes do not reflect as much light as the reflectors with adjustable, wide and extra-long wings. Today, you can even buy additional kits to expand some Reflective materials to grow marijuana indoors models if you are thinking of growing more plants.
LED devices do not need a reflector since the diodes made of highly reflective material. Compact fluorescent lamps can come in use in the most common HID displays, provided they have an E40 thread. Although, due to its extra weight, it is only a viable option for more robust and more massive HID displays.

MYLAR

Mylar rolls are probably the best option to cover the walls of a custom growing room. It is no longer as expensive as before and reflects up to 90% of the light. Any decent growth cabinet will be available with Mylar rolls. NASA invented this material. What more evidence do you need to be ideal? Just make sure it stays flat and avoid bumps and bubbles, as it could create hot spots by accident.

ORCA GROW FILM

Killer whale growing leaves are one of the most modern and, in general, the most expensive Reflective materials to grow marijuana indoors whenever I can find a workshop that sells it for rolls because it is not yet widespread in Europe. Although it is a very high-tech fabric that uses a crystalline microfiber to increase the reflection of around 90%, again, the formation of bubbles and dents should avoid when placing it on the walls. Most producers will use Velcro to make sure it is smooth.

WHITE PLASTIC SHEETS

Cheap white plastic rolls can place you around 80-90% reflectivity. But the disadvantage is that this material could melt and often begins to peel off the walls if the living room gets too hot. It is not the best reflective material, but if you do not have much budget and have to cover a large room, it is a decent option. This reflective coating is not difficult to find, and nowadays almost any crop shop sells it with discounts per roll.
Matte white paint is probably the best option if you have a limited budget and an ample space to cover. It is almost as effective as any of the above options, usually with a reflectivity of 80-90%. The only real drawback is that its application requires a lot of labour. You will have to buy some rollers and brushes and apply two coats of paint to make sure you get full coverage. Let it dry and ventilate the room for a few days to remove the vapours from the colour.

According to Ricky of Trailer Park Boys, this is a relatively original reflective material and is not a great idea. The aluminium foil applied with the opaque face outwards only offers 50% reflectivity. Worse, it is incredibly fragile and has a reputation for creating hot spots, no matter how hard you hit it against the wall. There is reflective material to avoid.

MIRRORS

Directly from the big book of bad ideas, there is the option of using mirrors to reflect the light. Just don’t do it. Mirrors may seem a viable option, but they don’t work well at all. Hot spots are practically guaranteed, and if you break one, it’s seven years of bad luck. No cultivator wants to have an evil eye in his fourth harvest.

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