What color is the metal halide lamp?

Question 1: What is the color difference between metal halide lamps and high-pressure sodium lamps? There are three kinds of high-strength gas discharge lamps in common use: high-pressure mercury lamps, high-pressure sodium lamps and metal halide lamps. High-pressure mercury lamps are not metal halide lamps. The basic principle of metal halide lamps is to add a variety of metals into the arc tube of high-pressure mercury lamps in the form of halides to make them emit light.

Metal halide lamps are a real green light source.

Nowadays, the general lighting technologies are basically divided into two types, incandescent lamps and discharge lamps. Incandescent lamps, such as light bulbs used at home, emit light by heating tungsten wires; Discharge lamps, such as fluorescent lamps, high-pressure sodium lamps, high-pressure mercury lamps and metal halide lamps, emit light by evaporating and expanding the gas and metal halide pills in the arc tube through arc heating.

metal halide lamp belongs to high-pressure gas discharge lamp, and it emits high-efficiency light because most of the energy of metal halide pills is converted into visible light and only a small part of the energy is converted into heat during the whole light-emitting process, thus producing quite high light efficiency. Metal halide lamp is the newest member of discharge lamp family, which has replaced incandescent lamp, high-pressure sodium lamp and high-pressure mercury lamp in many fields. The main advantage of metal halide lamp is its small size. A 1-watt metal halide lamp arc tube is only one inch, which can be installed in a very small outer tube. In addition, the demand for energy of metal halide lamps is obviously less than that of other lamps, so it greatly reduces the emission of waste gas and waste residue in the process of power generation, and is worthy of being an environmental protection product.

Comfortable white light Compared with high-pressure sodium lamps that emit dark yellow light and high-pressure mercury lamps that emit blue light, the comfortable pure white light emitted by metal halide lamps is loved by most industrial places and commercial places, which can make the scenery in a dark room or at night as colorful as under the sunshine.

question 2: what is the difference between the light colors of metal halide lamps and high-pressure sodium lamps? Generally, the color temperature of metal halide lamps is above 3, K, which emits white light, while the color temperature of high-pressure sodium lamps is 2, K, which emits yellow light.

question 3: What color light does metal halide lamps emit seems to be yellow light?

question 4: Why do the colors look different under metal halide lamps? The quartz tube would have reacted with sodium, resulting in sodium loss. Sodium is the source of yellow spectrum. When the lamp is used for a long time, the yellow light decreases, the light turns blue, and the color temperature increases. In addition, the slight inconsistency of electrode distance and arc tube length will lead to the change of color temperature. If the consistency of light and color is strict, ceramic metal halide lamps can be used.

question 5: what color is the metal halide lamp without reference, and what color is it with reference? What is the reference for 1 points? Do you mean the color excited by the lamp or the color of the light emitted by the light source (the term is color temperature)? The color temperature of the light source (which can also be said to be the color of light) is 3K (yellow light), 4K (neutral light or white light), 5K and 6K (ultra white light)

Question 6: How to distinguish the color temperature of a metal halide lamp? There are about five points in the color temperature of a metal halide lamp. Neutral color 5 k; Cold white 4 k; Warm white 3K

question 7: is the color rendering of metal halide lamps poor? Metal halide lamp is a discharge lamp which is operated by AC power and produces arc discharge in the mixed vapor of mercury and rare metal halide

OSRAM HMI? Metal halide lamp is a discharge lamp which is operated by AC power and produces arc discharge in the mixed vapor of mercury and rare metal halide. Its main characteristics and advantages are as follows:

ultra-high luminous efficiency can reach 1 lumens/watt

the temperature of sunlight is close to 6K

the color rendering index of high color rendering is higher than 9

hot start capability

dimmable

HMI? Metal halide lamps have a product range of 125-18,W, and there are three product forms:

Double-ended

adopting "GS" technology, there is a relatively small electrode gap between electrodes, and higher arc brightness is beneficial to improve the efficiency of lamps. "Ultra quiet HMI? Metal halide lamp, as a new standard light source, has a good suppression of acoustic ringing when it works in square wave.

Single-ended non-external bubble shell

has a special base design, which allows hot start even though it has a small diameter. Especially suitable for compact lamp system.

one end has an outer bulb

The outer bulb makes the lamp easy to carry and can avoid noise when equipped with electronic ballast. The outer protection improves the dimming characteristics and allows the lamp to ignite at any position.

HMI? Metal halide lamps are mainly used in location shooting of movies and TV. Low-power HMI metal halide lamps are more widely used in electronic news photography (ENG) and high-power ones are used in location shooting. On the stage, HMI metal halide lamp plays an increasingly important role in scene lighting. Professional photographers are more and more interested in HMI metal halide lamps. Applications in other important occasions include projectors, effect lighting, large-screen projection and simulated sunlight.

HMI? Metal halide lamp, single ended, 6K

HMI? Metal halide lamp, double-ended, 6K

PAR64 with reflective cup lamp Par 64-Reflector lamp

Sodium lamp uses sodium vapor discharge to generate visible light. Sodium lamps are divided into low-pressure sodium lamps and high-pressure sodium lamps. The working vapor pressure of low-pressure sodium lamp does not exceed several pa. The discharge radiation of low-pressure sodium lamp is concentrated on two double D spectral lines of 589. nm and 589.6 nm, which are very close to the highest value of human visual curve (555 nm), so its luminous efficiency is extremely high, reaching 2 streams per watt (LM/W) at present, making it an energy-saving light source with the highest luminous efficiency among various electric light sources. The working vapor pressure of high-pressure sodium lamp is greater than .1 MPa. High-pressure sodium lamp is developed for the disadvantages of low-pressure sodium lamp, such as too strong monochromaticity, poor color rendering and too long discharge tube. High-pressure sodium lamp is divided into ordinary type (standard type), with luminous efficiency of 13 lm/w and color rendering index ra = 25; Improved, its luminous efficiency is 75 lm/w, and the color rendering index Ra = 6; High color rendering type, its luminous efficiency is 45 ~ 6lm/w, and its color rendering index Ra = 8 ~ 85. It produces yellow light. Sodium lamps are mainly used in roads, airports, docks, ports, stations, squares, industrial and mining lighting without color rendering requirements, etc. Sodium lamps used as street lamps can produce good road visibility at night. This orange light is strong and soft in foggy days, and objects under this light can be seen clearly. Therefore, many traffic arteries and artificial lighting use sodium gas lamps to reduce car traffic accidents. In the field of functional lighting, today's energy-saving light source products such as electrodeless lamps and LED lamps are still in the stage of technological development, and sodium lamps will also be the mainstream products in such lighting places.

question 8: why is the 175w metal halide lamp blue? If you need warm white light, you need to choose the color temperature of 3k or 4k.

If you need white light, you need to choose the color temperature of 6k.

According to the picture you sent, there should be a problem in the matching between the light bulb and the ballast. You can buy a 15w light bulb and try it. The 175w light bulb is not a conventional metal halide lamp, and it belongs to the American standard.