As we all know, there are a lot of different kinds of lighting in the market today. Among the popular kinds are the compact fluorescents, also known as CFLs, LEDs, and incandescent bulbs which are used by many households for their day to day lighting needs. Unknown to many, not all lights are created equal. Some can be perfectly used at any lighting fixture at home while some, when used at home could be quite impractical especially if you'll just use it for your good ol' table lamp. Ceramic metal halide lighting is one of them.
So what is a ceramic metal halide and why is it not practical to use on a regular table lamp? Ceramic metal halide light, also known as a CMH light, is a member of the HID family of lamps. It is relatively a new source of light which is basically a variation of the old mercury vapor lamp. It is called a ceramic metal halide light because it is composed of a ceramic tube which has different metals in it such as mercury, argon and metal halide salts. The temperature of this ceramic tube can reach or even exceed 1200 kelvins which makes the metal halide salts in it partly vaporized. These metal salts are then dissociated into metallic atoms which becomes the main source of light of the bulb.
This kind of bulb produces high light output for their size which makes them a compact yet powerful light source. It is a high intensity light product which operates at high internal pressures and temperatures. Yes, they can be used for general lighting purposes, but because of their wide spectrum and power, they are best used in professional fixtures to brighten up a huge space to maximize its power.
CMH lighting is basically used in large spaces which require clear, white light. Directional display lighting or track lighting in retail and museum displays is one of its popular use. It is also commonly used in lobbies, atriums, and foyers in commercial and high rise residential areas. School gyms, baseball fields, and other athletic facilities also benefit from ceramic metal halide lighting. Some street lights also use CMHs because it's powerful yet energy efficient.
CMHs are available in different strengths. CMH bulbs are available in strengths from 20 watts to 400 watts. These bulbs can also last up to a whopping 20,000 hours which makes it one of the most efficient lighting in the market today.
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