The LED Grow Light market has many different brands utilizing various technologies and color spectra to create an indoor grow light. A common question for growers is “Will a white LED grow light grow better than full spectrum grow lights with a targeted spectrum?” The answer is No, and it is easy to understand why. Here we explain why a targeted full spectrum LED grow light, such as a G8LED, will always outperform a white only LED grow light of the same wattage.
A white LED grow light does not have the optimal color formulation
A G8LED will outperform a similar wattage white light every time because it is using the most efficient color spectrum required by the plants. G8LED lights use diodes from 380 to 760nm, while including a small percentage of white diodes to round out the color range. A white LED grow light is missing some very critical parts of the lights spectrum like ultraviolet (UV) and infrared (IR) and far red. UV and IR are outside the visible range and are not available in white light. The UV diodes facilitate resin production to form more trichomes, which make for frostier plants with better aroma, flavor and more potency. Infrared is beneficial for stem strength and flowering. White LED grow lights are missing these critical wavelengths of the light spectra, which means the plants grown with white LEDs will produce fewer trichomes and have less potency, aroma, and flavor.
White diodes waste energy
Using white only diodes in a grow light defeats the whole purpose of using LED technology to target specific wavelengths of light required for plant growth. White LED grow lights are typically designed with only 3000k or 4000k white diodes in the entire led board. The white diodes are actually just a blue LED with a phosphor coating, which converts much of the blue light into what appears white to the human eye. The most commonly available “white” LEDs use a phosphor to create a yellowish white light, which is designated as 2700-5000k. Up to 20% of the light produced by the blue LED in this way is lost in the process. Hence a white diode cannot be as efficient as a diode that puts out a specific color. Although white LEDs are good to light up your home or office, they are not the best choice for indoor grow lights.
The National Aeronautics and Space Administration (NASA) has been testing LED grow lights for over two decades. NASA uses a targeted spectrum when testing LED lights for growing food in space; NASA does not use an all-white LED light.
G8LED grow lights are the highest yielding grow lights because their design allows them to put out the highest light intensity concentration. G8 lights have some of the highest PAR values and grow some of the healthiest, highest quality plants.