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

[2014-02-18]

Metal halide (MH) lamps, as with all HID lamps, use a ballast to regulate circuit conditions – voltage, current, and waveform – for starting and operating the device. A lighting ballast has three primary functions: establish an electric arc through the lamp limit current through the lamp after ignition, compensate for variations in line voltage and ensure consistent lumen output Capacitors are optional for Reactor (R) and High Reactance (HX) ballast circuit designs. The optional capacitor is used for power factor correction only and does not affect the ballast or lamp operation. The capacitor, when added, will reduce the ballast input current while the HID lamp is operating. However, the optional capacitor increases the ballast input current requirement to level greater than the normal operating current during open circuit condition that occur when attempting a hot re-strike of a hot HID lamp after a momentary power loss or shut off....

[2014-02-14]

James offers High Intensity Discharge ballasts for mercury, probe start metal halide, pulse start metal halide and high pressure sodium lamps. Standard metal halide lamps or probe start metal halide over 150 watts, like fluorescent, are electric discharge lamps and require an open circuit voltage of nearly two times the operating voltage to the initiate the arc between the two electrodes in the arc tube. High pressure sodium, pulse start metal halide and probe start metal halide lamps 150 watts or less require an ignitor to initiate the high voltage to start the lamps. The ballasts provide the starting voltage with the igniter, where required, and provides stability for the lamp. HID lamps have negative impedance characteristics and would draw current until destruction unless a ballast was in place to regulate the current. HID lamps take several minutes to warm-up and reach full light output. If power is interrupted between the lamp and the ballast, the arc will extinguish and lamp will go out. The lamp must cool down and reduce the vapor pressure before it will re-start. The most common HID ballasts are the core and coil and is used in 90% of the fixture applications. Core and coil ballasts consist of one, two or three copper (or aluminum) coils on a core of electrical-grade steel laminations. HID ballasts are classified by the kind of circuit they use: Reactor (R), High Reactance autotransformer (HX), Constant Wattage Autotransformer (CWA), Regulated lag (Reg Lag) or Electronic. HID ballast are also classified as high power factor (HPF) or normal power factor (NPF). To correct the high current draw associated with reactor and high reactance ballasts, and to provide a greater level of lamp wattage regulation, the 2-coil Constant Wattage Autotransformer (CWA ballast, also referred to as a "Peak Lead Autotransformer") was developed. It is the most commonly used ballast circuit for medium and high wattage (175 - 2000W) applications and typically represents the best compromise between cost and performance. The CWA is a high power factor ballast utilizing a capacitor in series with the lamp rather than across the input. The capacitor works with the core-and-coil to set and regulate the lamp current to the prescribed level. The CWA ballast provides for greatly improved lamp wattage regulation over reactor and high reactance circuits. A +/- 10% line voltage variation will result in a +/- 10% change in lamp wattage for metal halide. The metal halide and high pressure sodium ballasts also incorporate wave shaping of the open circuit voltage to provide a higher peak voltage than a normal sine wave. This peak voltage (along with the ignitor when used) is used to start the lamp and control the lamp current crest factor (typically 1.60 - 1.65). With the CWA ballast, input current during lamp starting or open circuit conditions does not exceed the input current when the lamp is stabilized. CWA ballasts are engineered to tolerate 25-30% drops in line voltage before the lamp extinguishes (lamp dropout), thus reducing accidental lamp outages....

[2014-02-13]

An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the Electromagnetic Ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic. Electromagnetic Ballast is another wound coil similar to choke but used for an entirely different function. Fluorescent lamps, mercury vapour lamps, sodium vapour lamps, iodine lamps, neon sign lamps for publicity etc need a high voltage for starting and once started, the running voltage assumes a value much lower than the mains voltage. The Ballast provides the high voltage for starting....

[2014-02-13]

The first lighting ballast technology used to operate MH lamps were electromagnetic, also known also as a core and coil ballast for bulky, heavy, magnetic core of laminated steel plates wrapped in copper windings.A simple device that uses a core and coil assembly transformer to perform the minimum functions required to start and operate a lamp. core and coil ballasts are often found in HID systems, as well as older fluorescent systems.A metal halide lamp using an electronic ballast is about 70% more energy efficient than typical standard HID electromagnetic ballasts with probe-start metal halide lamps....

[2014-02-12]

Hi-semicon is a professional Eco-Solution light producer .We produce LED luminaires and Non-Fossil energy devices . First and foremost, we see ourselves as selling lights for the future, not just luminaires and equipment. That's why we call ourselves: HI-SEMICON "Light of the future". Hi-semicon LED high bay family is the energy solutions for warehouse,workshop and other industrial and commercial applications.It's easy to retrofit the existing installation ,allows up 65% energy savings. Product Features： Phase change heat dissipation heat sink . High-Efficiency Bridgelux LED array with Silver coating Copper base . Uniform light dispersion Longer lifetime=Less Maintenance Easy to install....

[2014-02-11]

Metal Halide outdoor flood light fixtures are available in 50W, 70W, 100W, 150W, 200W, 250W, 320W, 350W, 400W, 750W and 1000W. Outdoor flood light fixtures are used for lighting parking lots, building facades, playfields, displays, signs, general security lighting or anywhere bright, economical lighting is required. If you wish to illuminate a larger area such as the outside of an industrial property or a large building, then a 400W or above floodlight will be required. This is more than often too bright for domestic use (unless you have a huge house!). It is also likely to be the case that it would be difficult to prevent light pollution in a domestic area with such a high wattage lamp. For huge areas, such as sports pitches and similar, the 1000W and 2000W floodlights are the ideal choice. These floodlights are perfect for use in places such as football pitches and other sporting areas such as athletics stadiums. High wattage metal halide lamps (615W) are ideal for growing applications and other applications can also be catered for, such as reef aquarists where a high intensity light source is required. Always check which specification of lamp and fitting is best suited to your before purchasing. metal halide ballast kits are factory new and come complete with ballast core, capacitors and all mounting hardware. Available in 50W, 70W 100W 150W, 175W, 250W, 400W, 1000W and 1500W kits. For wiring instructions Using this type of floodlight is not recommended for on-off, stop-start use as the lamp will be severely damaged if you should do this. The metal halide floodlights are ideal for starting up and then staying on for a long duration of time, but for residential areas where you may have the floodlight on a PIR sensor, it is important to choose a different option such as a halogen floodlight, where the lamp is designed for this type of quick on-off application....

[2014-02-10]

The LED highbay. Just a few years ago LED technology could not produce a reliable LED configuration to compete with T5 or 400 watt Metal Halide output. Those days are gone! James Lighting has a new LED highbay offering that boasts some very impressive numbers when it comes to lumen output. Utilising the latest in LED technology, the LED Highbay offers superb energy efficiency combined with lumen outputs that allow effective replacement of 400W metal halide luminaires. The LED Highbay also utilises lens control providing accurate distribution of light ensuring minimal wastage and energy consumption. The LED Highbay is also offered with a range of sensor controls to further enhance your energy saving giving both daylight regulation and presence detection and also offering ground level remote programming for ease of commissioning. Integral sensors allow these luminaires to be installed on a one for one basis with no need to install additional BUS wiring therefore minimising your installation costs. A typical 400 watt highbay produces 20,000 lumens with a brand new lamp. However, that number quickly decreases due to the poor life of metal halide. so lets assume the lamp is running at 70% output(most places I have been are far wore than that). That takes us down to 14,000 lumens, all while consuming 456W of electricity. The LED fixture produces 18,000 Lumens while consuming a paltry 213W....thats a 54% reduction in operating costs!!! Not to mention that the LED fixture maintains 92% of it's output at 60,000 hrs. and has a rated life of 100,000 hrs! By the way, you can also do motion sensors on LED. Cutting costs even more!...

[2014-02-10]

Compact fluorescent light bulbs contain a gas that produces ultraviolet light when electricity passes into the bulb from an electronic ballast at the base of the bulb. This light isn't visible to the human eye until it interacts with a special coating on the inside of the bulb, which converts the ultraviolet light into the visible light spectrum. This is a more efficient use of electricity than traditional incandescent bulbs. CFL Outdoor Floodlight: 26 Watt (90 W Equivalent): How long will one bulb last? Each bulb is guaranteed to last 6 years based on average consumer use. How much energy does each bulb use? Each bulb uses 26 watts and produces as much light as a conventional 90 watt bulb. This will reduce energy use by more than 71%. Key benefits, compared to standard incandescent light bulbs: Lasts up to 3 times longer Uses 71% less energy, saving money on energy bills Same quality of light as Soft White bulbs Stays cooler Goes on instantly, flicker-free Also available in Wal-Mart stores...

[2014-02-10]

A 400 Watt Metal Halide floodlight supplied with a high output, energy efficient lamp. This floodlight is ideal for commercial and industrial lighting applications,mounted a 6 metres high, this floodlight will light up an area 20 metre x 20 metre to above street lighting level. An ideal solution for car parks or similar areas. The lamp supplied has a 10,000 hour expected life, so should last more than a few years of normal use. The 36,000 lumen's output is the equivalent of over 3 of the standard 500 Watt Tungsten Halogen floodlights, yet only consuming around 440 Watts of power.This Metal Halide version is ideal for security use with CCTV camera's due to the excellent colour rendering producing true colours as opposed to the yellow tones emitted from SON (sodium) lamps. 400W Metal Halide Ballast Kit Details: Ballast Operating Voltage: 120V/208V/240V/277V/480V 60Hz (5-Tap) Amp Draw: 120V=4.10 208V=2.40 240V=2.04 277V=1.75 Ballast ANSI: M59 (probe start metal halide) Ballast Wattage: 400 Watt Ballast Type: HID Magnetic Metal Halide Ballast Power Factor: 0.98 Ballast Circuit Type: CWA Ballast Shipping Weight: 10.4 lbs Full Factory Warranty: 5 Years Capacitor Included: 24.0/400 Mounting Hardware Included Additional Metal Halide Ballast Info: 400 Watt metal halide ballast M59 replacement kit w/ capacitor, core & mounting hardware. We recommend all ballast servicing to be done by a certified electrician. Improper wiring is unsafe and can damage the lamp and/or ballast kit....

[2014-02-08]

The constant wattage autotransformer HID ballast type should be used where a stabilized light output is required. CWA is an HID ballast type that comes in a fairly small economical size, yet still provides a reasonable degree of regulation. It also offers the advantage of a high power factor, low line extinguishing voltage, and line starting currents that are lower than operating currents,Magnetic ballast use a coil wrapped around a metal core, essentially an electromagnet, to generate an inductive field that affects the voltage flowing through the coil wire. Because they work at a lower cycle than electronic ballasts, you may notice a flicker or hear a hum coming from fixtures containing electromagnetic ballasts. Prior to 1980, the dielectric fluid and potting material in magnetic ballasts contained polychlorinated biphenyls (PCBs), a highly regulated, highly toxic carcinogen. Congress banned the manufacture of PCBs in 1977 and banned their use in 1979 in all but totally enclosed equipment. From 1979 through 1991, Di (2-ethylhexyl) phthalate (DEHP), another toxic hazardous material, was used to replace PCBs in certain ballast capacitors. Unlike the high power factor auto-transformer (HX-HPF), which uses a capacitor as a parallel component, the capacitor on a CWA ballast type is used in series with the lamp. This provides the lamp with a more stable wattage when voltage on the branch circuit fluctuates. The capacitor is referred to as a lead circuit when, as in the case of the CWA ballast, it performs an important ballasting function....