China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

[2013-07-19]

The fluorescent ballast is the part of a fluorescent light fixture that creates a high voltage surge to cause the gases in the tube to glow. It's sometimes called a starter. Frequently, the first clue that a ballast has failed is a strong burning odor. Changing the ballast is a straightforward process for anyone with confidence working with wiring. When you change the ballast in a fluorescent light holder make sure you replace it with exactly the same kind. Magnetic ballast employ core and coil transformers to operate lamps. They are intended to control the electric current and the flow at an appropriate level for the bulbs. Some magnetic ballasts employ an igniter which comes together with metal halide or sodium lamps. Although this type is the simplest, it is characterized by higher robustness. The magnetic ballast is capable of withstanding exposure to fluctuations and transients within an electric system, along with temperature extremes. Typically, the magnetic type of ballasts is used with fluorescent and neon lamps. The low frequency electronic ballast is a variation of the magnetic one, incorporating some electronic components....

[2013-07-19]

A sodium vapor lamp is a lamp that uses sodium to create light. It can come in a high pressure or low pressure format. High pressure lamps have more components than low pressure and contain other substances such as mercury. The lamp produces a clarity of light that creates vivid color from objects illuminated by it. The tube of a high pressure sodium light is generally made out of aluminium oxide, due to its resistance to the high pressure, and xenon, that is used as a starter for the light because it won't react with the other gases. Voltage runs to the light through a HID ballast, which regulates the current. James's ballast products represent many years of experience in ballast design and manufacturing. James offers ballasts for all HID lighting sources including standard and pulse start metal halide lamps and high pressure sodium (HPS) lamps. Step 1 - Remove the Lamp Remove the lamp. Make sure you turn off all power first to safely remove the lamp from the location. Step 2 - Visually Inspect the Lamp Visually inspect the lamp for proper connections and contacts. This will eliminate any visual or connection issues with your high pressure sodium ballast. Step 3 - Check Accessories Review the accessories on your lamp. Verify proper type and ratings. Pull out your owner's manual to make sure the accessories are appropriate for your lamp. Generally, you should inspect the choke, the starter and the phase correction capaciter. Step 4 - Test the Voltage Using your voltage meter, test the voltage. Test the input terminals for each lamp. (Refer to your diagrams. Often you can find the diagram on the ballast or the under belly of the lamp. For reference purposes, transfer the diagram using a pen and piece of paper). Test the ballast input side and then the ballast lamp side. These types of tests can harm your volt meter. Make sure you are using the proper high voltage probe when testing. Step 5 - Check the Ballast Remove the starter. Insert a short circuiter into the lamp holder. Now you will need to turn the system on. Your ballast is working correctly if you do not need any signs of smoke or any humming and buzzing sounds. You should perform this test for a minimum of 1 to 2 minutes. Step 6 - Check the Short-Circuit Current Pull out the AC ammeter and check the short circuit current of the ballast. During the test, the fuse should resist the short circuit current. During the test, also check the choke type and rating used. It must be appropriate for the ballast. If during the test you find the fuse blown, then you know that there is a short in the ballast. Step 7 - Reassemble If everything tests out perfectly, reassemble the ballast and the lamp or lamp cover. Place your lamp back in the original housing and turn the electricity back on....

[2013-07-18]

While most problems with fluorescent lighting is fixed by changing the bulb, another problem can be lurking that requires a little more knowledge and skill to repair. If the fixture fails to light after all of the bulbs have been replaced, the culprit most likely will turn out to be the fluorescent ballast. Ballast replacement presents the possibility of exposure to potentially hazardous voltages and should be performed only by qualified personnel. All installation,inspection and maintenance should be performed only with the entire circuit power to fixture or equipment turned off. Installation shall be in accordance with National Electric Code. Before you spend time replacing the ballast on your fluorescent light, make sure that the light bulb is not about to die. The lights will give this away by flickering. A dying bulb also may display black bands on the ends. If a new bulb still flickers, glows at the end or hums, you have to replace the ballast. This part of the bulb regulates the electrical current to the light. Start the job by removing the old ballast.To access the ballast, start by removing the cover to light fixture. After the cover is removed, you should be able to see the ballast.You will need to remove the plugs from the fixture before removing the ballast.Lay out the ballast and plugs on a counter or table top that has some work space.You will notice that there are three sets of two wires with each pair being the same color.Move the old ballast out of the way and lay the new one in its place.Install thehigh pressure sodium ballast back inside your fixture.Fold the excess wiring into the middle of the fixture....

[2013-07-16]

All fluorescent light fixtures consist of at least lamp(s), lamp holders, fluorescent ballast and internal wiring. Some older types have "starters", too. The magnetic ballast is used to create the voltage and current necessary to start and illuminate the fluorescent lamp. In time, the ballast may need to be replaced. Read on to learn how to swap out the old with an approved replacement ballast of the same technology. Fluorescent lighting fixtures, including Ming-mounted fluorescent holder body, said Ming-mounted fluorescent lamp holder body with both sides, Ming-mounted fluorescent stent body with internal electrical PCB board, electrical PCB board is electrically connected with the lamp , lamp mounting slots on the lamp and lamp with fixing slots, lamp and lamp mounting groove groove between the fixed angle of less than 90 °, lamp and power input plug is electrically connected to the power input plug fixed to the mounting member, the installation member has a light body firmware....

[2013-07-15]

Electronic ballasts are available for HID lighting systems. These ballasts provide the same functions as their magnetic ballast but use power-supply switching electronics rather than magnetic transformers to operate the lamp. This results in reduced energy losses and improved operating characteristics. The ballast provides the proper starting voltage, operating voltage and current to the lamp to initiate and sustain its arc. High intensity discharge (HID) lamps have negative resistance, which causes them to draw an increasing amount of current; hence, they require a current-limiting device. The ballast provides the following functions: It provides starting voltage and, in some cases, ignition pulses. All ballasts must provide some specific minimum voltage to ignite the lamp. In the case of pulse start lamps, an additional high voltage pulse is needed to ionize the gases within the lamp. These pulses are superimposed near the peak starting voltage waveform; Electronic ballasts have been successfully used with fluorescent lighting systems for many years, largely because of their improved energy performance and dimming capabilities. Electronic ballasts for HID lighting systems have become available only more recently. Initially, electronic HID ballasts were primarily for use with lamps of 175 W or less. But reliable electronic ballasts are now becoming available for use with higher wattages of 320, 350, 400 and even up to 1000 for metal halide and high-pressure sodium HID lighting systems....

[2013-07-14]

High-intensity discharge (HID) lighting systems are widely used in applications where high light levels are desired for large areas, such as industrial and street lighting. Similar to fluorescent lighting systems, all HID lighting systems require a ballast to operate. Traditionally, magnetic ballasts designs were the only choice available for HID lighting systems. Today, high-efficiency electronic HID ballasts are available that provide improved lighting quality and reduce lighting electricity use by 10 to 30 percent.¹ The dimming capabilities of some models can provide additional savings. That's good for your company, and it's good for the environment. Reduced electricity use provides cost savings, and it reduces greenhouse gas emissions associated with electricity generation that contribute to climate change. STANDARD IGNITORS Standard Ignitors are supplied with all Universal High Pressure Sodium and Metal Halide ballasts requiring ignitors. These ballasts are supplied with an appropriate external ignitor unless the ignitor is permanently attached to or built into the ballast. INSTANT RESTRIKE IGNITORS An Instant Restrike Ignitor generates multiple pulses to restrike a lamp arc after a brief power interruption has extinguished it, without the typical 3-minute cool-down time. A Standard Ignitor cannot restrike an arc until the lamp has had time to sufficiently cool. Even though an Instant Restrike Ignitor can reinitiate the lamp arc immediately upon restoration of power, the lamp is still subject to warmup. The following chart is based HID ballast use magnetic coils to regulate current and voltage to provide proper lamp starting and operation. These magnetic ballast tend to be hot, bulky and heavy, which affects their suitability for some applications. LONG DISTANCE IGNITORS Long Distance Ignitors are used in situations where a ignitor must be mounted further from the lamp than is recommended for a standard ignitor. The maximum lamp to ignitor distance for these ignitors is 50 feet, which may vary depending on the type of lamp, ballast, fixture, and wiring....

[2013-07-13]

Magnetic Ballast is an iron core inductor, inductance coil when the nature of the current changes, the magnetic flux induced in the coil will change, and thus the induced electromotive force in a direction opposite to the direction of the current, thereby preventing the current changes. Coil: generating induced emf. In case of power, because there is a certain resistance coil will produce power loss, the resulting rise in temperature thermal energy ballast, the ballast is easy to accelerate aging. In order to reduce the resistance of the coil, try to use high purity copper enameled wire imports. Silicon steel sheet: block conductor in a changing magnetic field, the conductor in the entire internal cause induced current, commonly known as "eddy", it will cause energy consumption, temperature rise. In the ballast, in order to enhance the strength of the magnetic induction cores are used, but because of the presence of eddy currents to be insulated from each other using a thin silicon steel lamination core formed, rather than the core piece, to reduce eddy current bring loss. Bottom: fixed installation role. Skeleton: Fixed coils, chip, easy wiring role. Design for Long Life: Because of core ballast quality insulation material, coil core and copper wire, control gear in the EC, OM and OG series from James lighting achieve a maximum life of approximately 100,000 hours of operation, in other words about ten years of constant use at a winding temperature of 130°C (tw=130°C). The winding temparature is the ambient temperature plus the increase in temperature due to the power consumption of the unit. A change in temperature of 10°C up or down leads to a doubling or halving of the life of the unit....

[2013-07-12]

Magnetic chokes ensure that the pre-heating current, ignition voltage and lamp current, all remain within the specified tolerances for optimum operation of fluorescent lamps. Long lamp life can only be achieved by preheating the electrodes before the ignition voltage is applied to the lamp. The EC units heat to precisely the right temparature because if the preheat current is too low or too high the lamp electrodes will be destroyed and the life of the lamp cut short. The choke ensures a sufficiently high ignition voltage after the prehear phase by opening a glow starter or electronic starter. The latter automatically selects the right time to open the starter to reliably ignite the lamp at very high or very low ambient temparatures. The magnetic chokes are designed to very narrow tolerances so the impedance perfectly limits the lamp current and maximum luminous flex is achieved. At the core of this part is a material used to produce its magnetic field. Coils used to filter higher frequencies may use an air-core or a ferrite core, while lower frequency coils may use an iron core. The material in the core determines the strength of the magnetic field and the inductance rate of the coil. Inductors are similar to capacitors, with one key difference in how they work. Both store electrical charges that pass through them, but capacitors store the charge inside an insulator located between two conductors on the capacitor. A choke coil stores the electric charge in the magnetic field created around it instead of on any specific part of the coil itself. Both parts are used in electronic circuitry, but capacitors typically store electric charges while these coils filter them. When choosing the best type to use in a circuit, the engineer will look at the voltage, the DC resistance of the coil, and the level of inductance. These factors determine which coil will most efficiently pass through the correct currents while blocking the unwanted ones. The frequency to be passed through determines the best types to use. The low magnetic leakage field - and therefore the very low noise emission - means that the magnetic chokes from James Lighting can be places bear electrical equipment that is sensitive to interference....

[2013-07-11]

A choke coil is a part used in electrical circuits to allow DC current to flow through while blocking AC current from passing. These coils are used in a number of electrical devices. When used as part of a radio’s circuitry, it falls into one of two frequency classes: audio or radio. Those used in circuits with higher frequencies use different core materials than those used in lower frequency circuits. In electronics a choke is a version of a passive two-terminal electronic component called an inductor which is designed specifically for blocking higher-frequency alternating current (AC) in an electrical circuit, while allowing lower frequency or DC current to pass. Like other inductors, a choke usually consists of a choke coil of insulated wire often wound on a magnetic choke core During the process of sending a signal through a circuit, the idea is to let the desired signal go through while filtering out other, unwanted signals. One type of unwanted signal is common-mode noise, which is filtered out by a common-mode choke coil. Power lines are an example of a source of common-mode noise. Without a coil, the power line would create a lot of electrical noise as it traveled to its destination, which would then be received on the other end and possibly cause interference with the signal. Common-mode high pressure sodium ballast, where two coils are wound on a single core, are useful for prevention of electromagnetic interference (EMI) and radio frequency interference (RFI) from power supply lines and for prevention of malfunctioning of electronic equipment. They pass differential currents (equal but opposite), while blocking common-mode currents...

[2013-07-11]

magnetic chokes for fluorescent lamps and compact fluorescent lamps and the luminaire inserts for compact fluorescent lamps UEC are robust and extremely cost-effective solutions with long lives. The wide range of low-loss ballasts in energy efficiency classes B2 and B1 from James Lighting covers all the relevant applications and ensures that the lamps are operated as specified. The choke coil works because it acts as an inductor. When the current passing through changes, as AC currents do, it typically creates a magnetic field in the coil that works against that current. This property, known as inductance, blocks most of the AC current from passing through. As a result, currents that do not change, such as DC currents, can continue through while those that do are blocked by the very magnetic field they created. When the conductor or wire is wound around a magnetic materials ( ferrite, nanocrystalline, amorphous, iron, steel, MPP, sendust, high flux, mega flux, etc), and current flows through the conductor, a flux is induced on the magnetic materials. This flux is induced by the magnetic field generated by the current carrying conductor. The magnetic material's atomic parts got influenced by the magnetic field and causes them to align in a certain direction. magnetic chokes for luminaire installation are characterised by minimal energy consumption, compact windings, optimised dimensions and high-quality materials. In temperature sensitive applications, the B1 version offers additional benefits thanks to its lower energy consumption and 15k lower self-heating....