4/23/2024 0 Comments Do i have halogen vs hidPlants need a light source that integrates the whole spectrum, not a mixture of red and blue as commonly thought of. See how plants use light throughout the whole PAR range? Although with different relative absorption rates all colors are used.Īlso notice there is even a slight but significant absorption at the Infrared and UV levels. This is the average plant response spectrum chart by McCree. Spectrum of a Metal Halide Lightīefore we see and compare the spectrum of a Metal Halide HID, please look at the following chart: Chart of average plant response to light spectra If the bulb is powered from a constant voltage source such as directly from the AC wiring, the current will increase until the bulb destroys itself. Just like HPS and CMH bulbs, MH bulbs need a ballast to run. In fact, touching a bulb that has been running for a long time can result in serious burns. This makes them a valuable addition to our gardens.īecause of the nature of the processes that produce light within these lamps, they output significant heat into their immediate area. Usually they’re rated with a high lumen output of around 100 lm per watt, a lamp life of up to 20,000 hours and pretty decent degradation rates. Some manufacturers mix the metal-halide technology with others to improve light output and add a few variations into the color spectrum for a more complete solution. They are made very similarly to Mercury Vapor Lamps with the difference that they contain additional metal halide compounds in the quartz arc tube, in order to improve efficiency and color rendition (CRI). They’ve been around since the early 60’s and have been further developed for several applications like car headlamps, street lighting and our favorite: Growing lush greens! Metal halides are a type of HID lamp widely regarded as one of the best grow light alternatives for growing greens. Subscribe to the Epic Gardening Podcast on iTunes or Spotify What is a Metal Halide Grow Light? Listen to this post on the Epic Gardening Podcast We’ll compare them to other grow light alternatives such as HPS, Ceramic MH and LEDs to help you decide whether they’re a good addition to your garden as your main or supplemental light source. I’ve put up this guide in order to help you learn about Metal Halide grow lights, how they work, their advantages, and their downsides. Metal Halide grow lights have been in the market long enough to prove themselves as one of the favorite go to grow lights for growing plentiful, beautiful and nutritious green canopies. If you’re a grower, you’re probably looking into Metal Halide HIDs to give your garden a healthy beautiful green lush.
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