Other

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Negative Discharge
Their low luminance limits their uses to indicator and decorative lighting.Light is created by a noble gas (normally neon or argon) that is ionised at relatively low pressure. The electrodes are usually fabricated from Swiss iron as this is low in impurities, helping to keep the integrity of the gaseous filling and reducing the rate of sputtering. The shape of the electrodes can take many forms. in decorative lamps, flowers, religious symbols and icons, logos , numbers and letters...even animal shapes can be found.  The addition of a phosphor on an electrode or decorative element can be used to emit another colour, for example in a floral design lamp argon could be used to give a violet hue and the leaves may be applied with a phosphor that fluoresces green to give the look of foliage. A very common example of neon glow lamp is the ‘flicker flame’ lamp, usually in a candle shape envelope with electrodes cut in a flame shape. These lamps need series resistance to limit the current. Normally lamps are built with a carbon film (wire wound in older lamps)  resistor in the base cap and can be operated directly from the mains. Lamps that do not have internal resistance require some form of current limitation.

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Induction

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Semi - Conductor
This information is currently under construction - Please check for updates or email us to be kept informed