Because more and more market data shows that LED grow light is the future of grow light. But HPS once represented an era of cannabis Grow Lights, and many still use HPS to grow cannabis today. So people is hesitate hen facing the choose of LED and HPS.
On the question of comparison, almost all answers are from the perspective of energy cost and LED spectrum customization. But as a grower, it is obviously more concerned about whether the harvest is different, whether it is more or of higher quality.
Today we are going to share a growing experiment that directly tells us how cannabis grows differently under different lights.
The experimenter selected several common Led Grow Lights on the market and an HPS light as the experimental objects. 
In the first step, the researchers selected the products with the most uniform light distribution from the LED grow lights, because the LED grow lights are composed of many lamp beads distributed on the panel. Its light distribution will depend on the distribution of its lamp beads. The light consistency is an important factor in determining whether a high-quality end product can be obtained.
After selecting the lamps, the researchers used LED grow light and HPS light to plant three times respectively, and then analyzed the difference in harvest quality. The results are shown as the following picture:
The THC-A content of each LED grow light harvest is always higher than that of the HPS light harvest, and is as high as 5.39%.
The researchers show that this is mainly due to the fact that the spectrum of LED grow lights can be customized and optimized compared to HPS, and the use of LED grow lights can make the growing environment more easy to be controlled.
So actually not all LED grow light can increase the harvested THC, the focus is on its optimized spectrum, but we have shared before, the same cannabis, different varieties, to obtain high THC, its best spectral light intensity Wait is different.
But the grow lights on the market basically have a fixed spectrum, so the grower should choose carefully and it's not an easy work. However, the Feton grow light give an solution to make everything simple:
Feton grow light : With its spectrum and intensity dimming function, it can adapt to a variety of lighting strategies. Growers can experiment to find the best lighting strategy for their species. Let the plant grow the highest quality and highest number of crops.
More importantly, its LED chip is with high uniform, instead of using various colors of LED chip to make full spectrum, it use the patented ALL in one LED chip -- each single LED chip is with 100% same spectrum and same intensity.
More about LED grow light: https://fetonlight.bossgoo.com/products/
