Why does an LED grow light work better than an HPS or metal halogen lamp?
According to experimental data, different wavelengths of light have a different influence on plant photosynthesis. For normal photosynthesis, the wavelength required is about 400-700nm, while 400-500nm (blue light) and 610-700nm (red light) have the largest impact on the photosynthesis process. Blue light promotes the growth of green leaves, protein synthesis and fruit formation, while red light promotes the growth of plant roots and contributes to blossoms and extends the flowering time, increasing production.

An LED light source is also called a semiconductor light source. This type of light has a narrow wavelength and emits light in specific wavelengths, making it easy to control the light color. LED blue (470nm) and red (630m) is enough for plant growth. Due to that, an ideal choice is to use a combination of the two. The advisable ratio of LED red and blue lights is 4:1 to 9:1. A ratio of 6-9:1 is optional.

As LED grow lights can emit a single color light, light utilization rates are high. However, as a sodium lamp lacks blue light, and a mercury lamp or compact fluorescent lamp does not emit red light, and all three are high powered lamps that use large amounts of energy LED lights are more often used, with a lower power equal to the higher power of other lights, saving up to 90% energy.

To install an LED grow light, the general distance between the lamp and the plant blade should be about 0.5-1 meters. Continuous light 12-16 hours a day can completely replace sunshine and achieve the same results in plant growth.

Power Consumption Comparison Between LED Grow Lights, HPS and Metal Halogen Lamps
In table 2, a 100 400W metal halogen lamp, a 250W HPS and 50W LED grow light are taken as examples, which all meet the same lighting requirements for healthy plant growth.

Assume that the working time of lamps is 10 hours per day and the cost per kilowatt hour is 1￥. A 50W LED grow light only consumes 55 kilowatt an hour per day, which saves up to 86% more energy saving than a 400W metal halogen lamp and 78% more energy than 250W high pressure sodium lamp. Therefore, the same percent of electricity bill saving is achieved. Compared with a metal halogen lamp, the monthly, yearly and 5 years' electricity bill cost savings when using an LED grow light is 10,350￥，124,200￥ and 621,000￥ respectively. Compared with a high pressure sodium lamp, the monthly, yearly and 5 years' electricity bill saving is 5,850￥, 70,200￥ and 451,000￥.

Applications of the LED Grow Light
With an adjustable monochromatic light color, illumination intensity, time and frequency of light exposure, the LED grow light is becoming increasingly popular in plant cultivation. The LED light is applicable most often to plant cultivation, supplemental lighting n greenhouses and plant factory lights.

Qili LED Grow Light
1. Patented Control Board
Our LED grow light uses the latest technology in the patented control board, which was developed by researchers from Shanghai Jiaotong University. The lighting time of different wavelengths of light can be controlled, making the light a more precise replication of natural daylight.

2. Optional LED Grow Light Types
We supply a variety of LED grow lights, including LED grow panel lights, LED grow high bay lights, LED grow tube lights, LED grow fill lights, LED grow flood lights and more. We are a flexible producer of other lamp types depending on customer requirements.

3. Professional Guidance in Choosing and Applying the Right LED Grow Light
We have expert knowledge on how LED grow lights promote the growth of different plants. We can effectively help customers choose the right LED grow light to replace metal halogen lamps and HPS lamps.

4. Customized Products Available
As an expert manufacturer of LED lights, we are able to supply products to exact parameter requirements.