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Which is better metal halide or high pressure sodium?
Metal halide is much less efficient than high pressure sodium–MH produces much less light per watt; MH produces more glare due to the blue light component and increases adaptation time; MH more effectively shuts off melatonin production which can trigger tumor growth; MH contains more mercury within the bulbs; MH.
Is CMH better than HPS?
By comparison, HPS and MH lights waste a lot of energy producing light at ranges that are not efficiently used by plants. This means that CMH are more PAR efficient than either HPS or MH, making them a better single light solution. They also have a more natural CRI (Color Rendering Index).
Are CMH lights safe?
It is important to note that, overall, CMH lamps are safe, but it is always better to be safe than sorry. The bottom line? If you want to keep up with your competition, you should considering making the switch to ceramic metal halide grow lights.
What’s the difference between HPS and CMH?
CMHs Run Cooler than HPS Lights — Another benefit of CMH lights over HPS bulbs is that they produce less heat. Even a 630w CMH light will run cooler than a 600w HPS bulb. So while HPS lights are cheaper overall, CMH lights will definitely save you some cooling costs during those hot summer months.
What are advantages of high pressure sodium lights?
Advantages. Most efficient member of the HID light family, 7 times as efficient as incandescent and over 2 times as efficient as mercury vapor. Warm-up period is 3-4 minutes, which is somewhat less than that of a mercury vapor or metal halide lamp. Long lamp life — 24,000 hours.
Are high pressure sodium lights energy efficient?
While upgrading to LED provides a lot of benefits, high pressure sodium (HPS) lamps still provide some of the most efficient lighting available. In fact, they’re roughly as efficient as LEDs in terms of their light output for each watt of energy used.
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’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.
Can you touch a CMH bulb?
You cannot touch these bulbs. They even come with a cotton glove. These bulbs, though not used now, used to be one of the many options of aquarium lights.
Do CMH bulbs explode?
iPower 315W CMH Bulb 4200K iPower 315w CDM bulb has a PGZ18 base – open rated for use with open fixtures – meaning they have a secondary protective filament casing and will not explode or catch fire.
Are CMH good for veg?
GROWERS CHOICE 315W CMH FIXTURE Grower’s Choice fixture provide full spectrum of lighting. It’s the Grow lights for seed starting, veg, flowering. It is a commercial grow light, customer can use it for greenhouse, but also can use in a grow tent.
How far should CMH lights be from plants?
Fluorescent lighting isn’t known for kicking off lots of heat, but they will generate some heat while they run so you’ll need to watch your plants carefully for signs of burning or bleaching. In general, you’ll want to hang your light no more than 12″ away from your plants.
Should I grow with LED or HPS?
First of all, it is no question that LEDs are more efficient at creating light than an HPS lamp. LEDs will always beat HPS on a light meter… But what we haven’t seen is the definitively better growth performance from LED grow lights, even at wattages that are nearly the same.
WHAT LED is equivalent to a 1000w HPS?
Black Dog LED PhytoMAX-2 600 Other companies would have called it the PhytoMax-2 1000. Despite the 600 in the name, this light is easily equivalent to 1000 watts of HPS power and is actually the most powerful fixture on this list.
Why is HPS better than LED?
The heat per watt is far greater with an HPS fixture compared to LED. This technology is far more efficient in transferring energy in to light, as it produces less heat and has a higher wattage equivalency to HPS (600w vs 1000w).
Are high pressure sodium lights being phased out?
Phasing out A number of popular lighting types will have to be phased out by 2017 including selected ‘standard’ high-pressure sodium (including retrofit), high-pressure mercury, and standard performance metal halide.
Is LED better than high pressure sodium?
High Pressure Sodium lights have excellent lifespan as well (although not as good as LED) which is why they have traditionally been used for outdoor street lighting in municipalities where energy efficiency is at a premium. Typical lifespan values for an HPS bulb are around 24,000 hours.
Is HPS for flowering?
Ironically, most HID grow light enthusiasts recommend using both MH and HPS grow lights. MH grow lights (metal halide) are suited best for vegetative growth and HPS grow lights are superior for flowering.
What is the difference between high pressure sodium and metal halide lights?
The primary visual difference between them is that metal halide light is white and the light emitted from a High Pressure Sodium bulb is amber orange. Both metal halide bulbs and HPS bulbs are available in medium and mogul base screw in connections.
Are high pressure sodium lights bad for your eyes?
High pressure sodium lights have made indoor growth of crops possible, but without the proper safety precautions these lights can do serious damage to the human eye. The damage done is often times irreversible so it is imperative that people working in grow rooms take the proper steps to protect their eyes.
Are metal halide lights energy efficient?
Metal Halide lights have average efficiency (75-100 lumens/watt source efficiency). They lose out to LEDs principally because their system efficiency is much lower (<30 lumens/watt) due to all of the losses associated with omnidirectional light output and the need to redirect it to a desired area.
