Is MH better than HPS?
In addition, HPS lights provide higher light intensity (lumens) than MH. HPS grow light bulbs also maintain their brightness better and last longer overall than MH, although they still become less efficient towards the end of their lifespan and should be replaced before they burn out completely.
What’s better led or CMH?
LED bulbs last 50,000 hours compared to 20,000 for CMH. If you are planning for obsolescence and want the greatest yield ROI within 1-2-year time frame, choose CMH. And even if you keep your grow space past 5 years, don’t worry, CMH’s provide a greater gram per watt due to their higher PPF and canopy penetration.
Are LED grow lights as good as metal halide?
LEDs tend to last much longer and are a more energy efficient and less maintenance intensive technology. Metal halides have long warm-up periods and a shorter lifespan but produce a very high quality light and are one of the most efficient lights when it comes to very cool color temperature outputs.
How far should 400W MH be from plants?
How far should a 400w HPS be from seedlings? For 400W HPS, the best distance from seedlings is between 12 inches or 30.48 cm (closest) and 19 inches or 48.26 cm (furthest). 400W HPS grow lights are the most commonly used HPS grow bulbs. These lights can cover around 16 square feet and produce high yields.
Can you use MH bulb HPS ballast?
Although the two fixtures use what are normally incompatible ballasts, conversion bulbs will let you switch lighting types. Some conversion bulbs allow MH light to work with HPS ballasts, and others let HPS work with MH ballasts.
What is a 315W CMH equivalent to?
Some suppliers claim one 315W CMH is equivalent to one 1,000W HPS lamp in terms of yields. Others have reported that you need two 315W CMH lamps to produce the same yields as a 1,000W HPS.
Is CMH good for flowering?
CMH bulbs are great for flowering, too, but not as good as HPS bulbs. They are much better at vegging though, making them the perfect full-cycle bulbs. CMH lamps are generally a bit more expensive than their HPS counterparts, but they make up for it with double the usable lifespan.
What are metal halide lights used for?
Uses. Metal-halide lamps are used for general lighting purposes both indoors and outdoors, such as commercial, industrial, and public spaces, parking lots, sports arenas, factories, and retail stores, as well as residential security lighting; automotive and specialty applications are further fields of usage.
Is Metal Halide good for growing?
Metal Halide (MH) lamps typically emit a white colored light. Traditionally Metal Halide lamps have been used by indoor growers during the vegetative stage of plant growth. They are ideal for growing plants up to the flowering and fruit production stages because they mimic the spring/early summer seasonal sun.
How far should a 600W MH be from plants?
Grow lights with reflectors (HPS, CMH etc) and boxed LED grow lights spread light wide. So, even when the grow light is hung low over the canopy, some light is going to go over the plants and hit the side wall of the grow tent. The optimum hanging height for a 600W HPS system is only 40cm or 16″.
How many lumens in a 70 watt metal halide lamp?
What is the Lumen Output of a Metal Halide? Metal Halide Wattage Delivered Lumens LED Wattage Equivalent 70 W 5,600 19 W LED 100 W 8,500 23 W LED 175 W 15,000 62 W LED 250 W 22,000 124 W LED
Why do metal halide lamps require a ballast?
Like all other gas-discharge lamps, metal-halide lamps have negative resistance (with the rare exception of self-ballasted lamps with a filament), and so require a ballast to provide proper starting and operating voltages while regulating the current flow through the lamp.
How do you dispose of metal halide lamp?
You should dispose of the metal halide lamp with your area’s household hazardous waste collection. Alternatively, your local recycling center may accept the spent metal halide lamp, if the center accepts hazardous waste.
What does metal halide lamp mean?
A metal-halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides (compounds of metals with bromine or iodine ). It is a type of high-intensity discharge (HID) gas discharge lamp.