LED pendant light Biro Circle Ring 60 cm, height 3.5 cm, with ballast on/off A flat aluminium ring forms the lampshade of the Biro Circle Ring LED pendant light. Behind the opal white plastic cover, which ensures optimum light distribution, LEDs have been installed all round, emitting powerful downward light thanks to rotationally symmetrical, deep-wide light distribution. The pendant light is not only a very good choice for lighting office or conference rooms - the light also perfectly illuminates other commercial areas or even a table in a private setting. The filigree suspension using fine steel cables on the round canopy makes the lampshade almost float in the room - with electronic ballast, switchable - not dimmable - general colour rendering index CRI > 80 - service life L70/B50 at 25 °C: 276,000 h, service life L80/B20 at 25 °C: 153,000 h - housing material: aluminium / steel / plastic - permissible ambient temperature (ta): -20 °C - +25 °C