How Much Light Does a Grow Tent Reflect?

How much light does a grow tent reflect

When choosing the right grow tent, you need to make sure that it reflects the most light. You want your plants to receive uniform light coverage and avoid uneven growth. Uneven light coverage can cause your plants to grow taller than they should be and cause you to harvest smaller yields. An even spread of light is best for your plants.

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The amount of light reflected by a grow tent depends on the material it is made of and the intensity of light. The wattage on the bulb label is the first thing to look for, but it is not always the best indicator of the amount of light that will reach your plants. The most accurate way to measure the amount of light reaching your grow tent is to use a PAR meter.

Grow tents are usually made to be 50×50 inches in size. This size will allow you to grow up to 60 plants, and will give you 240 square feet of light. To get the best coverage in a small tent, you’ll want to use LED lights that can emit 300-600 watts of light.

Reflective surfaces on grow tents help plants absorb light better. In general, the more reflective a grow tent has, the more light it will reflect. Some grow tents have reflective linings that reflect light at least 25% better than others. However, budget tents often don’t have good reflective materials. A grow tent with a reflective lining, such as Diamond Mylar, will increase the amount of light reaching your plants by 25%. Obviously, this will increase your yield.

Light reflection is an important factor in growing cannabis plants. Different plants require different wavelengths of light at different growth stages. Good reflective surfaces allow light to reach all parts of your plants while limiting heat buildup inside the tent.


The amount of light that reaches your plants depends on the brightness of the light source. Increasing the brightness of a grow light may increase the amount of light that reaches your plants. However, this may result in burning plants that are directly beneath the light source. Another approach is to lower the light’s temperature. However, lowering the light’s temperature will not increase its lumens. This is because light intensity is more important than bulb heat.

Another option for improving reflectivity is to use Mylar. This material is 97% reflective and can be found in both smooth and textured finishes. This material can be purchased in rolls or sheets and is very durable. It costs around PS20/EUR24 for 20-square meters.

Reflective materials can improve the amount of light that reaches your plants. Foil and Mylar are two common materials used for growing tents. However, if you have limited funds, you can use less reflective surfaces instead. You can even opt for one with a thin Mylar lining.

The light intensity of a grow tent should be chosen carefully. The intensity of light should be appropriate for the plant type you’re growing. If there isn’t enough light, it can result in uneven growth and lower yields. If your light intensity is too high, the plants may become too tall and may not produce as much as you want.


The amount of light that a grow tent reflects depends on how reflective it is. Most grow tents have reflective walls that direct horizontally-directed light to the plants inside. The first thing to notice on a bulb’s label is the wattage, but this number is not the same as the amount of light it puts out. To get an accurate measurement of the amount of light that enters your grow tent, you need a PAR meter.

Some grow tents come with a black side to reflect light. This will prevent the light from escaping, and the white side will reflect 75-90 percent of light. For maximum light blocking and durability, choose 6 mill thickness polyethylene. This material is more durable than other materials and will not melt when placed too close to light. You can attach poly to the walls with duct tape or carpenter’s nails. However, the downside of poly is that it will reflect heat, which can stress your plants.

Another option for reflectivity is to install an emergency blanket. Emergency blankets are inexpensive and can be easily installed. These blankets are made of Mylar and will reflect about 70 percent of the light. Make sure the reflective material is clean and unblemished. Also, make sure the reflective material is placed flat against the wall, as air bubbles can reduce reflectivity. Velcro is a good way to attach reflective materials.