What Kelvin Is Metal Halide?
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 spectrum is metal halide?
The spectral lines in metal halide lamps (arising from elemental excited state transitions in mercury vapor) occur at 365, 405, 436, 546, and 579 nanometers, enabling these light sources to be quite efficient when used to image fluorophores that were designed specifically for excitation by mercury arc lamps.
Can you use a LED bulb in a metal halide fixture?
Light-emitting diode (LED) technology advancements now allow you to retrofit your metal halide lamps with a simple bulb change. LEDs can give you comparable lumens at a fraction of the energy cost. They are also longer-lived and show a lower reduction of performance over their service life.
How hot does a metal halide bulb get?
When fully lit, the Metal Halide lamp will reach a temperature of 2000 degrees Fahrenheit and operates at a vapour pressure between 70 and 90 pounds per square inch.
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.
Is CMH better for veg or flower?
A recent addition to the market is Ceramic Metal Halide (CMH) bulbs. This makes them ideal for growing from seed to flower with the one bulb. You will get more growth during the veg stage due to the higher efficiency and less stretching in the flower stage due to the high percentage of blue in the spectrum.
How far should a 600w MH be from plants?
How close can I put my 400w or 600w HPS system to my plants? Taking all of the above into account you should place your HPS system between 12 & 18 inches away from your plant, this is the ideal position.
Can you use high pressure sodium bulbs in metal halide fixture?
What is the Difference Between Metal Halide and High Pressure Sodium? Both Metal Halide and High Pressure Sodium bulbs are part of the HID family of bulbs. These bulbs cannot be interchanged without changing their ballast, the regulating element in all light bulbs.
Do metal halide bulbs require ballast?
Metal halide (MH) ballasts are required to start the lamp, regulate the lamp starting and lamp operating currents, and provide appropriate sustaining supply voltage. MH lamp voltage typically increases over time, and the ballast must continue to provide sufficient voltage to the lamp as it ages.
What is the LED equivalent of a 400 watt metal halide?
The mean lumens for the 400W metal halide lamp is approximately 24,000. The recommended replacement for the 400W metal halide flood is the 120W HyLite LED Prizm, producing approximately 13,000 lumens. By only looking at lumens, it appears the new LED Flood Light fixture will be only half as bright.
What causes metal halide lamps to explode?
Since a metal-halide lamp contains gases at a significant high pressure (up to 50 psi), failure of the arc tube is inevitably a violent event. Fragments of arc tube are launched, at high velocity, in all directions, striking the outer bulb of the lamp with enough force to cause it to break.
Are metal halide bulbs toxic?
Exposure to broken metal halide bulbs can result in skin and eye irritation, including photokeratitis, particularly in settings such as sports facilities where balls or other objects are routinely thrown.
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
Are halides salts?
Halides are chemical compounds that contain halogens. Halides are present in nature with some — namely salts and acids — being essential to human life. Halides can be found in minerals, animals, and plants. The best-known halide is NaCl: table salt.
What does a capacitor do in a metal halide light?
Capacitors are used as a power factor correcting or current regulating device and provide the control necessary to ensure proper lamp and ballast operation. Different wattages, voltages, and ballast types require a variety of different capacitor values.