Table of Contents
How do I identify a metal halide lamp?
Designation of MH lamps that follow the ANSI system starts with “M” followed by a number (an “H” designation stands for mercury vapor lamps, and “S” for sodium lamps), which identifies the lamp’s electrical characteristics and, consequently, the appropriate ballast.
Is MH and CMH the same?
The largest difference between MH and CMH lamps is the Ceramic or “C” in CMH. Another advantage when using the CMH lamp, is the lower wattage – it is only 315 watts, compared to a metal halide lamp which is often 600-1000 watts.
What does a metal halide light look like?
Metal halide lamps generate a very cool white light. They are available in color temperatures as low as 3000K. Some metal halides are available with extremely cool color temperatures up to 20,000K.
What type of bulb is metal halide?
To keep things relatively simple, metal halide (MH) lamps are a type of HID (high-intensity discharge) lamp that uses a combination of metal vapor (usually mercury) and metal halides (salts) that work together to produce a very bright light, very efficiently.
How can you tell the difference between an HPS and an MH bulb?
Both Metal Halide and High Pressure Sodium bulbs are part of the HID family of bulbs. 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.
How can you tell the difference between metal halide and mercury vapor?
There is no difference between metal halide and multi vapor lamps because both names describe the same form of lamp. Metal halide or multi vapor lamps are a form of the light source that creates light via passing an electric arc through a gaseous mixture of mercury vapor and vapor of some metal halides.
Is CMH better than MH?
Balanced spectrum This means that CMH are more PAR efficient than either HPS or MH, making them a better single light solution.
What is a CMH in healthcare?
For more than a century, Community Memorial Hospital (CMH) has been the healthcare leader in Ventura County. Today, the six-story, 250-bed nonprofit facility has become a state-of-the-art regional hospital and health center, providing a vast array of medical services and programs.
Can you flower with CMH?
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.
Can you put a metal halide bulb in a regular light fixture?
Like fluorescent lights, metal halides require a ballast to provide high starting voltages and to regulate current inside the bulb during operation. This is why a metal halide bulb will not work in a standard household lighting fixture — aside from the fact that the larger E39 base will not fit.
What is the difference between halogen and metal halide?
The key difference between halogen and metal halide is that a halogen is a group 17 chemical element, whereas metal halide is a compound containing a metal and a halogen. Metal halides are ionic or covalent compounds of halogens.
Can you replace a metal halide bulb with an LED bulb?
LED Offers Long Life, Lower Energy Costs, Instant On and Control Options. A 400 watt metal halide bulb can be replaced with a 200 watt LED. A 100 watt metal halide can be replaced with a 50 watt LED. Implementing an LED replacement program should result in a 50% reduction in annual energy use (kWh) costs.
Is a metal halide a halogen bulb?
WHAT ARE METAL HALIDE LIGHT BULBS? A metal-halide lamp is an electric light that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides[1][2] (compounds of metals with bromine or iodine).What are Metal Halide Light Bulbs? Power Output ANSI Codes 1000W M47, M141.
Are metal halide and mercury vapor bulbs interchangeable?
Sometimes metal halide ballast kits will list like M90 and H38 on it’s label, if it was designed run both 100W metal halide and 100W mercury vapor lamps, but not always. They do not manufacture “mercury vapor” ballasts anymore, so you would use a metal halide ballast and MH or MV lamp.
Are metal halide bulbs being phased out?
Given metal halide is a declining technology under strong direct competition by solid-state lighting, a significant number of products may have been discontinued. In other cases, luminaires may have been redesigned for a different ballast and then retested.
What color is a high pressure sodium light?
Color rendering for High Pressure Sodium lights is slightly improved (HPS lights emit a yellow to white light) but it is still much worse than other types of lamps.
Will a mercury vapor bulb work in a high pressure sodium fixture?
Mercury Vapor (MV) lamps are most frequently used outside for parking and security lighting. They are the least efficient of the HID lamps (slightly less than fluorescents) and should be replaced with more efficient metal halide or high-pressure sodium lamps when possible.
Can you veg with a HPS light?
In response to the general question, can you use an HPS bulb for veg, the answer is yes. Basically you can use just about any light out there for any stage of growth, the real question is how well do each bulb work for veg.
What color is mercury vapor light?
Sodium vapor and mercury vapor lamps emit yellow and bright blue light, respectively. They are very efficient, and provide high-intensity light suitable for illuminating large, open areas.
How can you tell if a streetlight is a sodium vapor lamp?
The discharge tube may be linear (SLI lamp) or U-shaped. When the lamp is first started, it emits a dim red/pink light to warm the sodium metal; within a few minutes as the sodium metal vaporizes, the emission becomes the common bright yellow.
What is the difference between sodium and mercury Vapour lamps?
Answer: The light in Sodium Vapour lamp is from an atomic emission process whereas in Mercury Vapour Lamp it is, finally, from fluorescence emission. The mechanism of light emission in a sodium vapour lamp is simple and straight-forward.
