Ceramic Metal Halide G12

UK Stocks Remain of G12 Metal Halide Light Bulbs Available

Small but powerful.High-pressure discharge lamps, also known as high-intensity discharge (HID) lamps, differ from incandescent lamps in the way in which they produce light. They are very efficient because they generate extremely high luminous flux in a very small space. For example, a 2000 W metal halide lamp, such as the ones installed in football stadium floodlights, produces asmuch light as two 5000 W incandescent lamps. The area in which the light is produced is no larger than a 2 euro coin. Other advantages of modern high-pressure discharge lamps include low thermal output, excellent colour rendering and long life. Whats more, because of the compact dimensions of these lamps, their light can be easily and accurately directed.Consequently, high-pressure discharge lamps are the light sources of choice wherever products and objects need to be presented, such as in shop windows and retail outlets where bright light and long life are important, for example in factories, in stadiums and for street lighting and for plant lighting.The principle of high luminous efficacy.These lamps operate on the basis of an arc discharge. There is a constant arc between two electrodes that causes the filler material to give off light. This principle can be used with different metals and filler materials. Our range includes metal halide lamps, sodium lamps and mercury vapour lamps. Almost all discharge lamps need control gear to ignite them and limit their current.Metal halide lamps.The addition of metals and iodides greatly improves the colour and luminous efficacy of POWERSTAR HQI lamps. With their extremely short discharge arc, they come very close to the ideal of a point light source, which means their light is very easy to direct exactly where it is needed, and they offer a high utilisation factor. POWERSTAR HCI lamps represent a further development of POWERSTAR HQI metal halide lamps, the most successful metal halide lamps in the world. They are fully compatible with the corresponding HQI lamps. Their constant colour throughout their lives, their luminous efficacy and their colour rendering are all excellent. With its round ceramic discharge vessel, patented by OSRAM, it provides even better performance than its cylindrical counterparts in terms of light, colour and stability.Optimum operation with electronic control gear.The system reliability, comfort and economy of 35, 70 and 150 W HQI/HCI lamps are considerably improved if the lamps are operated with POWERTRONIC ECGs.VIALOX NAV hig h-pressure sodium lamps.VIALOX high-pressure sodium lamps rovide the highest luminous efficacy of all high-pressure discharge lamps - as much as 150 lumens per watt.Their principal benefits are as follows:

1. Extremely high luminous efficacy2. Extremely long life3. They are the most economical light sources in general lighting that enable the human eye to distinguish between colours. 4. OSRAM has developed the largest range of high-pressure sodium lamps. They are available in three complete VIALOX NAV families:

NAV with high reliability and economyNAV 4Y with extremely high reliability and economyNAV SUPER 4Y with outstanding luminous efficacy and extremely high reliabilityNAV 4Y: technology that takes us into the third millennium. With the new OSRAM VIALOX NAV 4Y lamps it is now possible to replace groups of high-pressure sodium lamps in street lighting every four years. This is thanks to the most advanced technology currently available for high-pressure sodium lamps. Innovative arc tube design, high-performance ceramics, shock absorbers and the most up-to-date manufacturing processes such as laser welding are all combined to produce virtually perfect arc tubes every time. Longer maintenance intervals and a reduction in premature failures add up to considerable savings in relamping costs.

HQL mercury vapour lamps.Mercury vapour lamps do not need igniters but they do need control gear. High-pressure mercury vapour lamps are used primarily for street and factory lighting.