LED Grow Lights Helpful Hints for Medical Marijuana Growers

  • LED’s produce low amounts of heat so they will not burn your plants. You can choose to move the lights closer to the plants. Closer lights means more light getting to your plants at a higher intensity.
  • Low Heat means less heat stress for your plants which ensure maximum fruit, flower and bud production.
  • Low heat produced by the LED lights also means less ventilation and lower air conditioning bills. Watch and adjust your room temperatures as you start using LED lamps.
  • LED’s produce the exact bandwidths plants need to grow, flower and produce fruit. Three colors are key to growth which are blue, orange and red at a ratio of 1:1:7 respectively. This technology was originally developed by NASA for use on space missions so the Astronauts could efficiently grow food.
  • LED grow lights provide your garden the same amount of usable light and use about a third of the electricity. A 600 watt commercial series LED grow light is equal to about 1600 to 1800 watts of HID lighting. This same light only uses 5 amps to produce that amount of light. A 1000 HID light in comparison uses 15 amps of electricity.
  • If you are feeding your plants on a regular schedule with a high quality fertilizer be prepared to tweak fertilizer levels because of the lower stress and heat levels. Plants will use less nutrients for better results.


Being knowledgeable about your LED Grow Light.

  • Hang your light in a safe fashion. Use quality hooks and parts to attached into building structure.
  • Do not get your light wet. Similar to all other lights water is not your friend.
  • Read the instructions and send in your warranty card (or do it online).
  • Use a quality light timer rated correctly for the size light(s) you are using.
  • Use a surge protector on your light. Rare surges in power lines can happen.
  • LED’s can be used for shorter photo periods in some cases. Plants need darkness and rest to grow the next day.
  • Do not obstruct ventilation openings on the LED Grow Light. Let it breathe.
  • Keep your light(s) clean and occasionally check your fans for dust. Canned air is helpful.

FAQs About LED Grow Lights

Whenever you add something new to your garden or greenhouse there are always a lot of unanswered questions that you might have. Using a newer technology can be exciting but there can also be some new challenges. LED Grow lights are a good way to grow your plants in a way that will get you some amazing results. In the next few paragraphs we are going to talk about some of the frequently asked questions that you might have about your new lighting system.

Watering? How much?

Many of your plants will use much less water under LED lights because there is not as much heat being output. Traditional lighting like fluorescent or incandescent put out much more heat which causes more evaporation. More evaporation means you will have to water your plants more frequently. Maintaining a watering routine will be easier once you get your schedule down. Be careful not to over water because this will cause slower root development and possibly stunt plant growth.

What temperature?

Since there is much less heat being output by your new LED grow lights, it would be a good idea to monitor the temperature of your plants roots. Doing this will help make sure your plants are developing at the correct rate. You want to keep a temperature of 70-80 degrees in your growing area especially during the colder time of the year. Colder weather will cause your plants to progress slower. Maintaining the right temperature will increase the rate of plant growth.

Fertilize? How Much?

When using LED grow lights, your plants will most likely need less nutrients. This can be contributed to less heat because the nutrients are not being evaporated with the water so rapidly like you would see with traditional lighting. A good starting point would be to use around 1/2 of the amount of fertilizer that is recommended by the manufacturer.

How close do I mount my LED light?

You want to be careful as to how close you mount your new LED lights to your plants. A good starting point is to stay at least 12 inches away from your plants if you are setting up the lights directly overhead. Mounting the lights any closer can damage your plants. Always read the manufacturers directions for proper placement of your lights.

Run time on LED lights each day?

When trying to figure out how long to run your lights you always want to check with your local nursery to find out the recommended dark period for the plants you are growing. Just like humans, some plants like to sleep as well… in the dark. Although, some studies have shown that if you have plants that get no sunlight or artificial light at all, running your LED grow lights 3w 24 hours a day could possibly show you 30% more plant growth.

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