Ceramics can withstand higher temperatures than quartz. The wall temperatures can therefore be raised which means the proportion of filler materials in the plasma can also be increased. HCI technology has further improved the luminous efficacy and color rendering of the lamps.
Ceramics are less susceptible to attack from the corrosive metal halide filler and less porous for filler components, which means longer life than lamps with quartz burners. Ceramic burners are now available in two different designs, the original cylindrical version and the improved round version.
With its POWERBALL HCI ceramic lamp technology OSRAM has further developed its successful POWERSTAR HQI metal halide lamp. This patented OSRAM technology ensures constant color throughout the life of the lamp. The round shape and uniform wall thickness offer considerable benefits.
The system reliability, comfort and economy of the 20, 35, 70 and 150 W POWERBALL HCI lamps are considerably improved if the lamps are operated with POWERTRONIC ECGs. These lamps are ideal for all demanding lighting tasks such as background and accent lighting for retail outlets, museums, foyers, showrooms, factories and outdoor installations.
