Should I Purchase a High Pressure Sodium or Metal Halide Grow Light? Limited time deal. In order to balance things out, growers usually add HPS grow lights into their garden as supplement light. Like fluorescent lamps, HID lamps produce light by the excitation of a gas confined between a pair of electrodes and require a ballast to limit current draw and to provide proper starting and operating voltages. Sun system LEC 315 light Emitting Ceramic Metal Halide: Best all in one. The lighting system is much better than that from many other lamps in the market. Simply make sure that they’re rated for universal positioning and then feel free to play with it until you find the best position to hang in your MH grow light. GE. Here are the average lumen output form different Metal halide grow lights: 150 W -> 12,000 lumen = 80 l/W; 250 W -> 21,000 lumen = 84 l/W; 400 W -> 36,000 lumen = 90 l/W 6. Theoretically, because of the nature of how they produce light LED technology is superior to any HID technology because it can target (as necessary) any part of the Photosynthetic Response Spectrum specifically without outputting under-utilized light and wasting energy. As a general rule of thumb, HID grow lights like Metal Halide (MH) and High Pressure Sodium (HPS) are most suitable for relatively larger grows where there is at least 5 feet (1.5 meters) of height in the grow space, though it’s recommended to use a taller space for the best results.This is because MH/HPS lights have to be kept fairly far from the plants. Buy it Now Fast Shipping! 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. Keep track of … Grower’s choice is the ideal fixture for all your horticultural … According to some gardeners, flower volume and fruit weight can increase by as much as 20 percent when using HPS lights for flowering. For a more detailed look, check out my in-depth article on ceramic metal halide lights. A CMH grow light is like a Metal Halide (MH) bulb, but while a MH bulb uses a standard quartz arc tube, CMH is built with a ceramic arc tube. Grow Co. 630w Ceramic Metal Halide is one of the most popular CMH lights in the market. Even though, there’s still a place for metal-halides in your garden. The HID lighting category includes metal halide (MH) and high pressure sodium (HPS) lights. Venture Lighting is the leader in metal halide technology, because they developed more than 80% of the metal halide lamp types in use today. High quality electronic ballasts can usually detect what kind of bulb they’re running and adjust accordingly. Metal Halide Grow Lights: These lights are great for early-stage plants as they emit a cool blue shade of the visible spectrum which helps the plants grow in size and generate more leaves and develop more foliage in general. This gives you the most flexibility. Luxx Lighting CMH 315w 120-270v Grow Light Fixture - Full Spectrum Bulb Included They are both good at what they’re used for. This is a summary of the most important information you’ll need when choosing a ballast for your metal-halide light. For example; many manufacturers offer a basic wing style reflector suitable for use with anything from a 250 watt Metal Halide to a 1000 watt HPS. Although with different relative absorption rates all colors are used. Now, this is the light spectrum of the average Metal Halide grow light: Notice the those peaks in the Blue, green, yellow and orange? This grow lamp produces plants with extremely tight internodal spacing for nice compact, bushy plants. That’s where the color of Metal Halide light is determined. Metal halides are a type of HID lamp widely regarded as one of the best grow light alternatives for growing greens. 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. Metal Halide grow lights are best used for vegetative growth. If a metal-halide bulb is underpowered, its light output will be bluish because of the evaporation of mercury alone. Some of these may be affiliate links, meaning we earn a small commission if items are purchased. While you're here, why not follow us on Facebook and YouTube? 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. We're always looking to improve our articles to help you become an even better gardener. 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