Yes, we all have heard of grow light. Whether it is LED growth light, HID grow light and fluorescent growth, we familiar with their strengths and weakness. We know which best suits our needs. We know which we can afford. There is no doubt this information matters a lot. what about LED grow light ? Is there anything special about LED grow light ? Well, there are. There are certain facts and information we must know about grow light. The following are six facts you must know about grow light:

  1. The first visible-spectrum LED was developed by Nick Holonyak, Jr., in 1962 while salaried to GE in 1962. Since then, the technology has grown in leaps and bounds. It has progressed greatly and costs have dropped tremendously, making LEDs a sustainable lighting solution. In the year 2011 and 2012, global sales of LED replacement bulbs increased by 22 percent while the cost of a 60-watt equivalent LED bulb fell by nearly 40 percent. By 2025, it's estimated that LEDs will account for 75 percent of all lighting sales.
  2. LED bulbs have a lifespan of 25,000 hours or more -- meaning their life span is 25 times longer than traditional light bulbs. That lifespan is equivalent to three years if run 24 hours a day, seven days a week.
  3. A light-emitting diode, or LED, is a type of solid-state lighting that uses a semiconductor to convert electricity into light. Today’s LED bulbs can be produce six-seven times more energy efficient than conventional incandescent lights and cut energy use by more than 80 percent.
  4. Unlike incandescent bulbs, which release 90 percent of their energy as heat -- LEDs utilize energy far more efficiently with very little heat generated.
  5. From traffic lights, brake lights to TVs and so many other display, LEDs have diverse applications because of their distinctive physiognomies, which include compact size, ease of upkeep, resistance to breakage, and the ability to focus the light in a single direction instead of multiplicities of direction.
  6. LEDs do not contain mercury. According to the Energy Department, LEDs are more environment friendly than incandescent bulbs. They also have an advantage over compact fluorescent lights (CFLs) that’s expected to grow over the next few years as LED technology continues its steady improvement.
  7. A huge feature of LEDs is their ability to be customized to any color temperature for growing. As I’m sure you all know, plants need different colors of light in different phases of growth. Often times you need to buy two different types of CFLs in order to satisfy a plant’s lighting needs throughout its entire lifespan. If you go the high pressure sodium route, it’s often only viable for flowering because of its heavy focus on the red area of the spectrum, which is used in the flowering or fruiting phase. With LEDs, you could theoretically buy a system that has color filters on sets of individual LEDs for each area of the light spectrum that a plant needs. Then you could adjust the amount of each color that is on at any time to perfectly customize the color spectrum to your plant’s exact needs.
  8. It is projected that about 40 million LEDs are installed in the U.S. This saves $600 million in annual energy costs. Using LED lights over the three decades could save the U.S. $500 billion in energy costs, diminish electricity consumption for lighting by nearly 60 percent and circumvent 1,600 million metric tons of carbon emissions.