Fluorescent and compact fluorescent lamps work based on the low pressure gas discharge principle. The glass tube on low pressure gas discharge lamps is filled with a noble gas at low pressure and a small quantity of mercury. The glass wall is coated with a fluorescent. Inside the housing, an electrical field develops between two electrodes and gas discharge occurs. The discharge process causes the mercury vapor to emit UV rays. Visible light is emitted as soon as the UV radiation makes contact with the fluorescent. The light color generated can be varied using an appropriate fluorescent mixture. Thus it is possible to create fluorescent lamps for all kinds of applications.The operation principle of high-pressure discharge lamps differs considerably from that of standard incandescent lamps. Light is produced by gas discharge that occurs in an arc tube between two electrodes after ignition. Electrical conductivity is established by ionized filler components. The electrodes are fed into a completely sealed discharge vessel.
During gas discharge, the additives (metal halides) and the mercury are excited by the current flow and emit the excitation energy in the form of their characteristic radiation. The mixture of different radiation components produces the desired color temperature and color reproduction properties. The mercury is completely vaporized in the operating state.
Advantages of low pressure gas discharge
- Flicker-free instant start in EB operation
- High degree of efficiency and economy
Fluorescent lamps for every application
LEDVANCE has a wide portfolio of modern, high quality and reliable fluorescent and compact fluorescent lamps to suit all requirements and tastes. Whether for private use or the professional sector - OSRAM fluorescent lamps stand out through their long service life, high level of economy and various light colors.