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Electrodeless Hi Bay Power Saver Energy Saving Device Electrodeless Hi Bay
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Electrodeless Lamp Lighting

Electrodeless lamps are the latest technology for commercial lighting applications with the potential to make most standard metal halide, mercury vapour and sodium vapour lamps technologically obsolescent.

"The next generation of light sources has started to take form in the lighting world. This generation promises better light and long life with less energy. The unique feature of these systems lies in how light is produced. The lamps that we are all familiar with, primarily incandescent, heat the electrode, usually a piece of metal until it incandesces, or "glows", producing light. Lamp burn-out is usually associated with the electrode failing, or breaking. The new generation replaces the weakest link in the chain--the electrode--and produces visible light with some innovative techniques. Some use radio frequencies to excite a coil while others use microwave energy directed at the element sulfur to produce the visible light. The new sources, spurred by demands for better quality electric lights using less energy, will slowly but surely penetrate our daily and professional lives."   Source: Energy Efficient Lighting -Best Practice Design, Technology and Management, Department of Sustainability and Environment (DSE)

High Bay Lighting Products

Electrodeless high bay lamps are available in three standard capacities: 125 Watt, 150 Watt and 165 Watt.

The major features of the lamps are:

  • instant flicker free start (no warm-up or re-strike time)
  • extremely long life 60,000 hours up to 100,000 hours
  • high efficacy - 80 lumens / watt (10,000 - 13,200 lumens)
  • minimal lumen depreciation - average degradation <5%
  • range of colours 2700 to 6500K (warm - daylight)
  • 110 - 264 input voltage in -30 to +50°C environments
  • generate minimal heat allowing lights to be much closer to the work area - option for very high output at the actual work area / plane
  • colour rendering index (CRI) ≥80
  • reductions in overall operating costs and CO2 emissions - around 60% when compared to that of a mercury vapour lamp equivalent
  • environmentally friendly - uses 3mg of encapsulated mercury while other lamps contain around 14 mg of non-encapsulated mercury (the whole high frequency electrodeless discharge lamp is 99.6% recyclable)
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    Electrodeless Lamps or Induction Lamps are essentially fluorescent lamps without electrodes. These lamps offer significant cost benefits regarding low energy use and reduced maintenance costs, although the initial lamp cost is slightly higher. A typical re-lamping schedule may call for changing metal halide lamps after only 15,000 hours, while electrodeless lamps can be changed after 60,000 hours. The savings in lamp replacements and associated labour costs quickly pays for the higher initial cost. Additionally, a 165 Watt electrodeless lamp will produce about the same lumen output as a 400 Watt mercury vapour lamp. Similarly, T5 High Output (HO) high bay lamps would need to be replaced at around 15,000 hours and consume more energy than their smaller T5 high efficiency (HE) cousins. The ideal application for electrodeless lamps is in areas where metal halide or high pressure sodium lamps have traditionally been used. Their long life and instant on/off lamp characteristics make them very reliable and easy to control, for example with motion or time sensors.

    Other lamps options and capacities from 40 watts are available to suit various applications, including flood lighting and street lighting.

    Operating Principle

    The high frequency electrodeless discharge lamp consists of three main components: the lamb bulb (A), the power coupler or antennae (B), and the high frequency power supply generator (C). When power goes through the high frequency power supply generator, it creates a 2.65MHz high frequency positive power. It uses the principle that when electromagnetism is coupled into the lamp bulb it responds to make the air in the bulb avalanche the electricity to form plasma. When the stimulated atoms of the plasma returns to their base state, the plasma radiates at the wavelength 254nm. Ultraviolet light is emitted which in turn excites the phosphors lining the bulb to create almost instantaneous light.

    In contrast with all other electrical lamps that use electrical connections through the lamp envelope to transfer power to the lamp, in electrodeless lamps the power needed to generate light is transferred from the outside of the lamp envelope by means of electromagnetic fields. There are two advantages of eliminating electrodes. The first is extended bulb life, because the electrodes are usually the limiting factor in bulb life. The second benefit is the ability to use light-generating substances that would react with metal electrodes in normal lamps.

     

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    Copyright © 2008 BMASS Energy Saving Solutions Pty Ltd
    Last modified: 30-August-2008