A lot of people believe that you need a 1000 watt artificial light to grow hemp indoors. The reality is, you can successfully grow medicinal herbs with far less wattage, saving you money on your electricity bill while growing healthier plants. So, how much wattage do you really need to grow indoors?
Do you need 1000W to grow indoors? Not with LED Habitats Grow Lights
The idea that we need 1000 watts to grow hemp comes from the days when it was common to use High Pressure Sodium (HPS) lights to grow anything indoors. At the time, HPS lights were the only decent artificial light source on the market, and a 1000 watt light was necessary for a sufficient photosynthetic light spectrum.
Where the myth that you need 1000W to grow hemp comes from
Let’s take a look at this short day plants-growing myth, and how you can grow indoors with eco-friendly (and wallet-friendly) LED grow lights.
The unit of measure for PAR is derived from the number of light particles, or micromoles per square meter per second that strike a surface.
White light can be generated either by combining LEDs with different wavelengths or by coating blue LEDs with a phosphor.
The lighting requirements for flowering and vegging are not the same. Vegging requires less wattage and light intensity compared to flowering.
A LED grow light provides the light energy of visible and invisible wavelengths (UV rays and Infrared Rays) to increase the growth of plants in an indoor environment. The rays emitted by them mimics exactly the sun rays.
You can scale up the wattage with respect to your grow space. Just remember that one square foot of grow tent space needs roughly thirty-two watts of real wattage.
On average for a 10 square foot grow area 400 watts is sufficient. The average wattage requirement per foot for LED grow lights is 30-50watts. This is however not standard since different LED grow lights vary some are energy efficient and will use fewer watts for the same kind of lighting. 40-50 watts is just the average standard.
The very first thing you have to consider is the type of plant you’re planning to grow. This is so since LED grow lights are engineered with respect to the type of growth.
Watts per Square Feet
Well-calculated LED lighting brings the perfect balance of light to supplement and control the plant’s photosynthesis.
According to research, a 4 x 4 requires around 512 watts, but the wattage can range from 500 to 650 watts.