With all these variables in mind, you can then consider your options. Here are some of our favorite cannabis grow lights:
What type of light is best for growing plants indoors?
9. G8LED Mega LED Grow Light
Lumens is a measure of how much light a given light source emits during each second the light is on. Like the light spectrum, lumens are more relevant for photoperiod plants. “Regular” cannabis plants require varying amounts of lumens during the different stages of growth. For example, they need between 2,500 and 5,000 lumens per square foot in the vegetative phase, but it jumps to 10,000 lumens per square foot during the flowering phase.
When growing outdoors you can harness the power of the sun, but in an indoor environment, sunlight is mimicked through the use of grow light bulbs, which aim to display the same spectrum of light as the sun.
Factors to consider before buying a grow light
Power equals poundage, so if you want big yields you’ll need more wattage. Professional LEDs can start at as little as 200 watts, and go up from there. A high-watt light can double the work of several low-watt bulbs.
You can find HID reflector hoods, as well as MH and HPS bulbs at any local grow shop.
The choice of whether to use LEC over the standard MH grow light is a personal preference. However, it’s also tied to cost. LEC grow lights represent a higher initial investment. Yet, they also are more efficient over the long haul, lowering your overall electricity bill.
It might sound strange that a plant prefers a type of light. However, different colored lights are mostly just different wavelengths and intensities. Due to this difference in wavelength, the plant prefers stronger or weaker lights at various stages of its development.
It isn’t easy to give a reliable estimate since there are several light options, and you need different lighting depending on the stage of growth. In general, you might pay close to $300 for a standard 1000W HID grow light, while a 630W LED light could cost over $1,500.
● Some manufacturers make dubious claims as to the strength of their lighting.
Final Thoughts on the Best Grow Lights for Indoor Marijuana
Also known as ceramic metal halide lights, this type of lighting features a collection of ceramic heating elements inside the lamp. Manufacturers use ceramic because it has a higher arc tube temperature. Arc tubes help create the lighting within MH lights. The result is enhanced efficiency and color rendering.
If you’re looking for discretion, LED grow lights and fluorescent grow lights are the likeliest options. However, if you’re after efficiency, HID is probably the best grow light for marijuana available. That is, as long as you don’t mind the increase in your electricity bill.
● Only useful for small grows.
Fluorescent Grow Lights – Best Used for Small Grows
You can buy HPS lighting in a variety of strengths, but don’t use 1000W. It is far too powerful and is only suitable if you have created a vast underground field of cannabis plants! Instead, a pair of 400W or 600W HPS lights should suffice.
No. The lighting in the average home is wholly ineffective for marijuana plant growth. It is designed to help us see, not assist plants in achieving photosynthesis.