Advantages Grow Lights of LED versus HPS grow lights.
LED use Less Energy when planting indoor
LED versus HPS grow lights, LEDs use far less energy to produce the same amount of light when compared to HPS or CMH. This can be measured using efficacy, which takes the amount of light produced by a grow light (µmol/s) and compares it to the amount of energy used (Joules/s). A Double-ended HPS fixture like the one made by Eye Hortilux can produce 1950 µmol/s while using 1000W of power giving, it an efficacy of 1.95 µmol/J. The VOLT® Full-Cycle Grow Light can produce 2000 µmol/s while using only 720W giving it an efficacy of 2.7 µmol/J. That makes the VOLT® Grow FL-1 light nearly 30% more efficient than the 1000W DE HPS grow light. For cultivators who have limited access the electricity, this can mean being able to have more lights at your facility without exceeding your buildings energy limits or compromising light intensity.
Opportunity for Rebates
A unique benefit for cultivators purchasing grow lights using LED technology is the availability of rebates from utility companies. With the recent boom in indoor cultivation, utility companies are seeing unprecedented demand for electricity, which puts immense strain on the grid. In order to combat that strain and to promote environmentally-friendly growing techniques, electric companies are offering rebates to cultivators who purchase approved high-efficiency LED grow lights instead of the more power-hungry HID style lights. Depending on your local guidelines you can have anywhere from 20% to 90% of the total cost of the LED grow lights you purchase refunded by your local utility company. Anyone can take advantage of these rebates, regardless of whether or not they have a cultivation license or if the crop they are cultivating has been legalized in that state. The only goal of the rebates being offered by the electric companies is to curb the demand being put on their grid. The size of the rebate is dependent on your local utility companies’ guidelines and the configuration of your grow. Most only offer rebates for grow lights that have been approved by the DesignLights Consortium (DLC) as being highly efficient. Rebates must be applied for and approved prior to purchasing your indoor grow lighting and compensation is normally only given months after the approved order is made. VOLT Grow has a team that can handle all of the paperwork and applications needed to get the maximum rebate for your grow light purchase.
Produces Less Heat LED versus HPS grow lights
Due to the energy efficiency of LEDs, grow lights using LEDs create much less heat compared to traditional light sources. HPS and CMH fixtures produce lots of heat when operating which, besides making them less efficient, creates a number of issues and limitations for indoor growers. In many places, particularly warmer climates, that excess heat needs to be removed from the grow room to maintain an optimal temperature for your grow environment. This means installing and running expensive HVAC (air conditioning) systems in your grow room. These systems use large amounts of energy to lower the temperature of your grow environment, which increases the operating cost of your grow. Because LED grow lights produce much less heat, those HVAC systems will not have to work as hard to maintain an optimal temperature for your grow room thus lowering your cost.
Can Hang Closer to Canopy
A secondary benefit of LED versus HPS grow lights producing less heat is that they can be placed closer to the canopy of your plants. HPS/CMH grow lights can burn plants if placed too close to the canopy due to the large amount of heat they produce. This means you need to leave more space between them and your canopy. LED grow lights can be placed as little as a foot above the canopy which offers a number of benefits. First, it allows you to grow vertically on racks. Multi-level grow operations enable cultivators to grow more plants in less space than would traditionally be needed. In regions where space is limited or real-estate is expensive, multi-level grows can increase a cultivator’s output while reducing their expenses. Additionally, placing your grow lights closer to the canopy increases the amount of light that reaches your plants. Light is absorbed by particles in the air. So, the higher your fixture is above your canopy, the less light will end up reaching your plant. Light spillage is also an issue in some grow set-ups. Lights hung higher above the canopy spread their light over a larger area. This can lead to light being wasted as it spreads out beyond the canopy and doesn’t hit any plants. Hanging your fixtures closer to the canopy reduces this effect and focuses light on the desired areas.